Uranium rose to 79.05 USD/Lbs on June 27, 2025, up 0.70% from the previous day. Over the past month, Uranium's price has risen 9.87%, but it is still 7.81% lower than a year ago, according to trading on a contract for difference (CFD) that tracks the benchmark market for this commodity. Uranium - values, historical data, forecasts and news - updated on June of 2025.

This dataset provides values for URANIUM reported in several countries. The data includes current values, previous releases, historical highs and record lows, release frequency, reported unit and currency.

Nuclear Energy Index fell to 38.14 USD on June 27, 2025, down 1.62% from the previous day. Over the past month, Nuclear Energy Index's price has risen 14.95%, and is up 31.97% compared to the same time last year, according to trading on a contract for difference (CFD) that tracks the benchmark market for this commodity. This dataset includes a chart with historical data for Nuclear Energy Index.

📈 Daily Historical Stock Price Data for Elevate Uranium Ltd (1988–2025)

A clean, ready-to-use dataset containing daily stock prices for Elevate Uranium Ltd from 1988-01-29 to 2025-05-28. This dataset is ideal for use in financial analysis, algorithmic trading, machine learning, and academic research.

  🗂️ Dataset Overview

Company: Elevate Uranium Ltd Ticker Symbol: EL8.AX Date Range: 1988-01-29 to 2025-05-28 Frequency: Daily Total Records: 9571 rows (one per trading… See the full description on the dataset page: https://huggingface.co/datasets/khaledxbenali/daily-historical-stock-price-data-for-elevate-uranium-ltd-19882025.

description: Some of the highest grade uranium (U) deposits in the United States are hosted by solution-collapse breccia pipes in the Grand Canyon region of northern Arizona. These structures are named for their vertical, pipe-like shape and the broken rock (breccia) that fills them. Hundreds, perhaps thousands, of these structures exist. Not all of the breccia pipes are mineralized; only a small percentage of the identified breccia pipes are known to contain an economic uranium deposit. An unresolved question is how many undiscovered U-bearing breccia pipes of this type exist in northern Arizona, in the region sometimes referred to as the Arizona Strip. Two principal questions remain regarding the breccia pipe U deposits of northern Arizona are: (1) What processes combined to form these unusual structures and their U deposits? and (2) How many undiscovered U deposits hosted by breccia pipes exist in the region? A piece of information required to answer these questions is to define the area where these types of deposits could exist based on available geologic information. In order to determine the regional processes that led to their formation, the regional distribution of U-bearing breccia pipes must be considered. These geospatial datasets were assembled in support of this goal.; abstract: Some of the highest grade uranium (U) deposits in the United States are hosted by solution-collapse breccia pipes in the Grand Canyon region of northern Arizona. These structures are named for their vertical, pipe-like shape and the broken rock (breccia) that fills them. Hundreds, perhaps thousands, of these structures exist. Not all of the breccia pipes are mineralized; only a small percentage of the identified breccia pipes are known to contain an economic uranium deposit. An unresolved question is how many undiscovered U-bearing breccia pipes of this type exist in northern Arizona, in the region sometimes referred to as the Arizona Strip. Two principal questions remain regarding the breccia pipe U deposits of northern Arizona are: (1) What processes combined to form these unusual structures and their U deposits? and (2) How many undiscovered U deposits hosted by breccia pipes exist in the region? A piece of information required to answer these questions is to define the area where these types of deposits could exist based on available geologic information. In order to determine the regional processes that led to their formation, the regional distribution of U-bearing breccia pipes must be considered. These geospatial datasets were assembled in support of this goal.

Uranium is a common element throughout the Earth’s crust, soils, and oceans. Uranium resources are naturally occurring deposits that may have a sufficient concentration of uranium to support mining operations. Canada has about 8% of the world’s unmined uranium resources, but accounts for some 25% of the global primary uranium production. Canada’s uranium mines are located in the Athabasca Basin of northern Saskatchewan, which has ore grades as high as 21% uranium metal, an order of magnitude larger than any other deposits in the world. The nuclear industry provides about 15% of Canada’s electrical power (50% of Ontario’s). The map shows districts with potential for uranium development, small occurrences of uranium, locations of uranium mines and facilities, and locations of nuclear facilities that generate electrical power.

This analysis presents a rigorous exploration of financial data, incorporating a diverse range of statistical features. By providing a robust foundation, it facilitates advanced research and innovative modeling techniques within the field of finance.

Uranium Energy (YCA): The Sun's Yellow Cake, or Just a Fool's Gold Investment?

Financial data:

• Historical daily stock prices (open, high, low, close, volume)

• Fundamental data (e.g., market capitalization, price to earnings P/E ratio, dividend yield, earnings per share EPS, price to earnings growth, debt-to-equity ratio, price-to-book ratio, current ratio, free cash flow, projected earnings growth, return on equity, dividend payout ratio, price to sales ratio, credit rating)

• Technical indicators (e.g., moving averages, RSI, MACD, average directional index, aroon oscillator, stochastic oscillator, on-balance volume, accumulation/distribution A/D line, parabolic SAR indicator, bollinger bands indicators, fibonacci, williams percent range, commodity channel index)

Machine learning features:

• Feature engineering based on financial data and technical indicators

• Sentiment analysis data from social media and news articles

• Macroeconomic data (e.g., GDP, unemployment rate, interest rates, consumer spending, building permits, consumer confidence, inflation, producer price index, money supply, home sales, retail sales, bond yields)

Potential Applications:

• Stock price prediction

• Portfolio optimization

• Algorithmic trading

• Market sentiment analysis

• Risk management

Use Cases:

• Researchers investigating the effectiveness of machine learning in stock market prediction

• Analysts developing quantitative trading Buy/Sell strategies

• Individuals interested in building their own stock market prediction models

• Students learning about machine learning and financial applications

Additional Notes:

• The dataset may include different levels of granularity (e.g., daily, hourly)

• Data cleaning and preprocessing are essential before model training

• Regular updates are recommended to maintain the accuracy and relevance of the data

Uranium concentrations in a large number of marine sediment samples of different types with world-wide spatial distribution have been determined using the rapid, precise and nondestructive technique of counting the delayed neutrons emitted during U235 fission induced with thermal neutrons. Several interesting relationships were apparent. 1) A direct proportionality was observed between percentage of organic carbon and uranium in sediments deposited in an anoxic environment in the Pettaquamscutt River in Rhode Island with concentrations ranging from 7 per cent organic carbon and 7 ppm uranium to 14 per cent organic carbon and 30 ppm uranium. A similar relationship was found in cores of sediments deposited on the Sigsbee Knolls in the Gulf of Mexico. 2) For manganese nodules a direct relationship can be seen between uranium and calcium concentrations and both decrease with increasing depth of deposition. For nodules from 4500 m in the Pacific, concentrations are 3 ppm uranium and 0.3 per cent calcium compared with 14 ppm uranium and 1.5 per cent calcium at 1000 m. 3) Relatively high uranium concentrations were observed in carbonates deposited in the deepest parts of the Gulf of Mexico, with the >88 ? carbonate fraction in Sigsbee Knoll cores having as much as 1.20 ppm. A model to explain the observed variations must include uranium enrichment in near shore environments via an anoxic pathway, followed by redeposition in a deep ocean environment with dilution either by low-uranium-bearing foraminiferal or silicious oozes or, along the continental margins, dilution with high-uranium-bearing carbonate sands.

This GIS dataset contains polygon features representing the boundaries of the six Abandoned Uranium Mines (AUM) Regions, including: Central, Eastern, Northern, North Central, Southern, and Western Regions. These regions comprise the parts of the Navajo Nation where abandoned uranium mines are located and does not encompass the entire Navajo Nation. Each AUM Region is comprised of many Chapters. Each included Chapter has at least one AUM within its boundaries.

Garber-Wellington - Groundwater Wells with Maximum Trace Metal Concentrations

Assessment of Distribution of Arsenic, Chromium, Selenium and Uranium in Groundwater in the Garber-Wellington Aquifer - Central Oklahoma.The Garber Wellington Aquifer (GWA) in central Oklahoma is a major bedrock aquifer comprised of interbedded sandstone, shale and mudstone that yields significant quantities of water for municipal, industrial, agriculture and domestic beneficial uses. This aquifer also is characterized by locally elevated naturally occurring levels of arsenic, chromium, selenium and uranium. The aquifer underlies parts or all of Cleveland, Lincoln, Logan, Oklahoma and Pottawatomie counties, and these major cities: Oklahoma City, Edmond, Del City, Guthrie, Midwest City, Moore, Nichols Hills, and Norman. These communities, and industries (such as Tinker Air Force Base) and businesses within their confines rely wholly or partly on the aquifer for water supply. In addition, domestic wells supply drinking water to thousands of individuals where public water supply distribution systems do not exist. Unlike public water supply entities that regularly have their municipal water tested and are required to provide water to their customers that meets the Environmental Protection Agency's mandated maximum contaminant levels (MCLs) for these constituents, domestic supply wells are not required to be regularly tested and many homeowners or prospective homeowners relying on water from domestic wells may be completely in the dark to the potential of drinking water with elevated levels of these constituents. The purpose of this project is to provide public access to increase awareness of water quality indicator information of these trace metals. The project indicator information to be disseminated to the public constitutes historical laboratory analytical records "data mined" from water agency data bases matched with their sampled water well locations. It is not the purpose or intent of this report to describe or interpret the results of these analytical results per se.A significant amount of scientific research of this aquifer has been conducted by the United States Geological Survey (USGS), et al. Many scientific publications available online and in print describe in great detail the causative factors for the presence of these naturally occurring trace elements in the aquifer, locally, at elevated levels that exceed EPA’s MCLs for public water supplies. The primary objective of this dataset is to disseminate information about groundwater quality trace metal occurrence (arsenic, chromium, selenium and uranium) in the Garber-Wellington to enhance public access and increase awareness to the potential of exposure to these naturally occurring elements in water wells. Historical, laboratory analytical data for samples collected from water wells across the Garber-Wellington Aquifer were obtained from the Oklahoma Department of Environmental Quality (ODEQ), United States Geological Survey (USGS) and the Association of Central Oklahoma Governments (ACOG). Water well metals data that could be associated with a unique earth coordinate (latitude/longitude) were used to create the dataset. Through data review and reduction of the original data sets received, it was determined that 1,835 project wells could be associated with a unique earth coordinate and contained an analytical report for at least one of the 4 primary project metals. For these 1,835 project wells, there are over 4,300 associated laboratory analytical results. *It is important to note that many of the well locations were derived from address locations and legal descriptions, not actual GPS locations. Therefore, this dataset is not intended to be used for site specific applications or matching wells to properties. Due to the variation of well depths, screened zones of wells, and formation variations in the Garber-Wellington aquifer, this dataset should not be used for interpolating values between wells.The attribute table contains information regarding the source collection agency and the historical maximum concentration level sampled for each metal. Additional fields contain the following three categories for laboratory analytical levels of reporting: (3) Metals data with a concentration that exceeds the maximum contaminant level (MCL); (2) Metals data with a concentration that is less than the MCL (1); Metals data with a concentration that was reported as less than the laboratory detection limit (0) A fourth classification was created to indicate that the well was not sampled for a particular metal. Note: The MCLs of Arsenic, Chromium, Selenium and Uranium are 10, 100, 50, and 30 micrograms/liter respectively.This project was funded through the 2009 604(b) Water Quality Management Program and the American Recovery and Reinvestment Act of 2009 (ARRA). The OWRB would like to thank the Oklahoma Department of Environmental Quality (ODEQ), the Association of Central Oklahoma Governments (ACOG), and the United States Geological Survey (USGS) for contributing data for this project.

This data release compiles the whole-rock geochemistry, X-ray diffraction, and electron microscopy analyses of samples collected from the uranium ore bodies of two mined-out deposits in the Grand Canyon region of northwestern Arizona - the Hack II and Pigeon deposits. The samples are grab samples of ore collected underground at each mine by the U.S. Geological Survey (USGS) during the mid-1980s, while each mine was active. The Hack II and Pigeon mines were remediated after their closure, so these data, analyses of samples in the archives of the USGS, are provided as surviving, although limited representations of these ore bodies. The Hack II and Pigeon deposits are similar to numerous other uranium deposits hosted by solution-collapse breccia pipes in the Grand Canyon region of northwest Arizona. The uranium-copper deposits occur within matrix-supported columns of breccia (a "breccia pipe") that formed by solution and collapse of sedimentary strata (Wenrich, 1985; Alpine, 2010). The regions north and south of the Grand Canyon host hundreds of solution-collapse breccia pipes (Van Gosen and others, 2016). Breccia refers to the broken rock that fills these features, and pipe refers to their vertical, pipe-like shape. The breccia pipes average about 300 ft (90 m) in diameter and can extend vertically for as much as 3,000 ft (900 m), from their base in the Mississippian Redwall Limestone to as stratigraphically high as the Triassic Chinle Formation. The breccia fragments are blocks and pieces of rock units that have fallen downward, now resting below their original stratigraphic level. In contrast to many other types of breccia pipes, there are no igneous rocks associated with the northwestern Arizona breccia pipes, nor have igneous processes contributed to their formation. Many of these breccia pipes contain concentrated deposits of uranium, copper, arsenic, barium, cobalt, lead, molybdenum, nickel, antimony, strontium, vanadium, and zinc minerals (Wenrich, 1985), which is reflected in this data set. The Hack II and Pigeon mines were two of thirteen breccia pipe deposits in the Grand Canyon region mined for uranium from the 1950s to present (2020) (Alpine, 2010; Van Gosen and others, 2016). While hundreds of breccia pipes in the region have been identified (Van Gosen and others, 2016), six decades of exploration across the region has found that most are not mineralized or substantially mineralized, and only a small percentage of the breccia pipes contain economic uranium deposits. The most recent mining operation in a breccia pipe deposit in the region is the Canyon mine, located about 6.1 miles (10 km) south-southeast of Tusayan, Arizona. In 2018, Energy Fuels completed a mine shaft and other mining facilities at the Canyon deposit, a copper- uranium-bearing breccia pipe (Van Gosen and others, 2020); however, this mining operation is currently (2020) inactive, awaiting higher market prices for uranium oxide. The Hack II deposit is one of four breccia pipes mined in Hack Canyon near its intersection with Robinson Canyon (Chenoweth, 1988; Otton and Van Gosen, 2010), approximately 30 miles (48 km) southwest of Fredonia and 9 miles (14.5 km) north-northwest of Kanab Creek. Hack Canyon incised and exposed part of the "Hacks" (or "Hack Canyon") breccia pipe, which was discovered and mined as a surface mine in the early 1900s for copper and silver. The original Hacks mine and adjacent Hack I deposit were later mined underground for uranium from 1950 to 1954 (Chenoweth, 1988). The Hack II deposit was discovered in the late 1970s along Hack Canyon about 1 mile (1.6 km) upstream of the Hacks and Hack I mines. The Hack II mine is located at latitude 36.58219 north, longitude -112.81059 west (datum of WGS84). Mining began at Hack II in 1981 and ended in May 1987. The USGS collected the ore samples reported in this data release in 1984 from underground exposures in the Hack II mine while it was in operation. Reclamation of the four mines in the area (Hacks, Hack I, Hack II, and Hack III) was planned and completed from March 1987 to April 1988, including infilling of the shafts and adits. Total production from the Hack II mine was reported as 7.00 million pounds (3.2 million kilograms) of uranium oxide from ore that had an average grade of 0.70 percent uranium oxide. This represents the largest uranium production from a breccia pipe deposit in the Grand Canyon region thus far (Otton and Van Gosen, 2010). The Pigeon mine was discovered along Kanab Creek in 1980. The site was prepared and developed from 1982 to 1984, and mining began in December 1984. The pipe was mined out in late 1989 and reclamation begun shortly thereafter. The former mine site is located at latitude 36.7239 north, longitude -112.5275 south (datum of WGS84). The Pigeon mine reportedly produced 5.7 million pounds (2.6 million kilograms) of ore that had an average grade of 0.65 percent uranium oxide. The five Pigeon deposit samples reported in this data release were collected by the USGS from underground exposures in the Pigeon mine in 1985, while the mine was in operation. Fourteen samples of Hack II ore and two samples of Pigeon ore were analyzed for major and trace elements by a laboratory contracted by the USGS. Concentrations for 59 elements were determined by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). Additionally, carbonate carbon (inorganic carbon), total carbon, total sulfur, iron oxide, and mercury concentrations were determined using other element-specific analytical techniques. These 16 samples and an additional four Hack II ore samples and three Pigeon ore samples were analyzed by X-ray diffraction (XRD) to determine their mineralogy. Polished thin sections cut from six of the Hack II ore samples were examined using a scanning electron microscope equipped with an energy dispersive spectrometer (SEM-EDS) to identify the ore minerals and observe their relationships at high magnification. The EDS vendor's auto identification algorithm was used for peak assignments; the user did not attempt to verify every peak identification. The spectra for each EDS measurement are provided in separate documents in Portable Data Format (pdf), one document for each of the six samples that were examined by SEM-EDS. The interpreted mineral phase(s), which is based solely on the judgement of the user, is given below each spectrum. References cited above: Alpine, A.E., ed., 2010, Hydrological, geological, and biological site characterization of breccia pipe uranium deposits in northern Arizona: U.S. Geological Survey Scientific Investigations Report 2010-5025, 353 p., 1 plate, scale 1:375,000. Available at http://pubs.usgs.gov/sir/2010/5025/ Chenoweth, W.L., 1988, The production history and geology of the Hacks, Ridenour, Riverview and Chapel breccia pipes, northwestern Arizona: U.S. Geological Survey Open-File Report 88-648, 60 p. Available at https://pubs.usgs.gov/of/1988/0648/report.pdf Otton, J.K., and Van Gosen, B.S., 2010, Uranium resource availability in breccia pipes in northern Arizona, in Alpine, A.E., ed., Hydrological, geological, and biological site characterization of breccia pipe uranium deposits in northern Arizona: U.S. Geological Survey Scientific Investigations Report 2010-5025, p. 23-41. Available at http://pubs.usgs.gov/sir/2010/5025/ Van Gosen, B.S., Johnson, M.R., and Goldman, M.A., 2016, Three GIS datasets defining areas permissive for the occurrence of uranium-bearing, solution-collapse breccia pipes in northern Arizona and southeast Utah: U.S. Geological Survey data release, https://doi.org/10.5066/F76D5R3Z Van Gosen, B.S., Benzel, W.M., and Campbell, K.M., 2020, Geochemical and X-ray diffraction analyses of drill core samples from the Canyon uranium-copper deposit, a solution-collapse breccia pipe, Grand Canyon area, Coconino County, Arizona: U.S. Geological Survey data release, https://doi.org/10.5066/P9UUILQI Wenrich, K.J., 1985, Mineralization of breccia pipes in northern Arizona: Economic Geology, v. 80, no. 6, p. 1722-1735, https://doi.org/10.2113/gsecongeo.80.6.1722

Uranium mining in Australia began in 1954 at Rum Jungle in the Northern Territory and Radium Hill in South Australia. The first mining of uranium for electricity generation in nuclear reactors began in 1976, at Mary Kathleen in Queensland. Australia is now the world's second largest producer. In 2004, Canada accounted for 29% of world production, followed by Australia with approximately 22%. Australia's output came from three mines: Ranger, which produced 5138 tonnes of U3O8 (11% of world production), Olympic Dam (4370 t, 9%) and Beverley (1084 t, 2%). Exports have increased steadily to a record level of 9648 tonnes of U3O8 in 2004, valued at A$411 million. Australia's uranium sector is based on world-leading resources and high and increasing annual output. Our resources are generally amenable to low-cost production with minimal long-term environmental and social impacts. Around 85 known uranium deposits, varying in size from small to very large, are scattered across the Australian continent (McKay & Miezitis 2001). After five decades of uranium mining, Australia still has the world's largest uranium resources recoverable at low-cost (less than US$40/kg U, or US$15/lb U3O8). In April 2005, these remaining low-cost resources amounted to 826 650 t U3O8 (= 701 000 t U), or roughly 40% of world resources in this category. Australia's total remaining identified resources in all cost categories amount to 1 347 900 t U3O8.

These data show the intensity of gamma rays released by Uranium, Thorium and Potassium in different soils and rocks in Ireland. Different soils and rock types can then be mapped. The data were collected between 2005 and 2021.Several surveys were merged to create this dataset. (1) Tellus Northern Ireland 2005-2006(2) Cavan-Monaghan, 2006(3) Tellus Border, 2011-2012(4) Tellus North Midlands, 2014-2015(5) Block A1, 2015(6) Block A2, 2016(7) Waterford, 2016(8) Block A3, 2017(9) Block A4, 2017(10) Block A5, 2018-2019(11) Block A6, 2018-2019(12) Block A7, 2019(13) Block A8 2020-2021(14) Block A9 2021The data were collected using an airplane. The airplane flies at 60 m flight height along lines that are 200 m apart. Gamma ray spectrometer data are recorded at around 60 m intervals along the flight lines. The spectrometer system mounted on the airplane records the number of gamma rays emitted per second by rocks and soils. The gamma ray intensity changes depending on the amount of Uranium, Thorium and Potassium in rocks and soil beneath the aircraft. For example, rocks such as granite contain a large amount of Uranium, Thorium and Potassium, while limestone rocks contain low amounts of these elements.The data are collected as points in XYZ format. X and Y are the airplane coordinates. Z is the different recorded data, which include gamma ray intensity and aircraft flight height. The XYZ data for each line contains thousands of points. The data from separate lines are merged to create grids of gamma ray counts and Uranium, Thorium and Potassium contents for each survey block. All the survey blocks are then merged to create final grids for Ireland.This data shows how much uranium is contained in the ground which can then be mapped.Colours are used to show gamma ray counts, Uranium, Thorium and Potassium concentration ranges. The values are defined in counts-per-second for gamma ray counts, parts per million for Uranium and Thorium concentrations and percent for Potassium concentration. Pinks and reds show the highest values. Greens and blues show lowest values.This is a raster dataset. Raster data stores information in a cell-based manner and consists of a matrix of cells (or pixels) arranged into rows and columns. The format of the raster is a grid. The grid cell size is 50 m by 50 m. This means that each cell (pixel) represents an area on the ground of 50 metres squared. Each cell has a value which is the average value of all the points located within that cell.The Tellus project is a national survey which collects geochemical and geophysical data across Ireland. It allows us to study the chemical and physical properties of our soil, rocks and water. It is managed by the Geological Survey Ireland.

Aeromagnetic and aeroradiometric data were collected along flight lines by instruments in an aircraft that recorded magnetic-field and radiometric values and locations. The magnetic data set presents latitude, longitude, altitude, and magnetic-field values. Geologic symbols or codes are also included. The geologic symbols were picked from surficial geologic maps. The radiometric data set presents latitude, longitude, altitude, geologic symbols or codes, apparent Uranium (Bismuth 214), Thorium (Thallium 208), and Potassium (K 40), the element ratios, and ancillary information.

This airborne or shipborne geophysical survey recorded the following parameters: Total Field Magnetic, Radiometric, Very Low Frequency. The flight line spacing is 250 m. The survey was flown between 1986-08-22 and 1986-08-23. The data were Digitally acquired. Platform: Fixed-wing.

URL: https://geoscience.data.qld.gov.au/dataset/cr017866

ML 201744, ML 5349 (MOUNT ISA), BIG DIP, URANIUM PROSPECT, DATA

The Snake River Plain (SRP), Idaho, hosts potential geothermal resources due to elevated groundwater temperatures associated with the thermal anomaly Yellowstone-Snake River hotspot. Project HOTSPOT has coordinated international institutions and organizations to understand subsurface stratigraphy and assess geothermal potential. Over 5.9km of core were drilled from three boreholes within the SRP in an attempt to acquire continuous core documenting the volcanic and sedimentary record of the hotspot: (1) Kimama, (2) Kimberly, and (3) Mountain Home. The Kimberly drill hole was selected to document continuous volcanism when analysed in conjunction with the Kimama and is located near the margin of the plain.

Data submitted by project collaborator Doug Schmitt, University of Alberta SGY file of vertical seismic profile data (1799-1893) FAR

This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Paleoceanography. The data include parameters of paleoceanography with a geographic location of Eastern Pacific Ocean. The time period coverage is from 191 to -57 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.

This data release compiles the electron microprobe spot analyses of U, Th, and Pb concentrations in uraninite (U oxide) particles, and corresponding calculated age determinations, measured in samples of ore from two uranium-copper breccia pipe ore bodies, the Canyon (Pinyon Plain) and Hack II deposits. The U-rich samples that were analyzed typify the deposits hosted by solution-collapse breccia pipes in the Grand Canyon region of northwestern Arizona. Applying procedures outlined by Bowles (1990), the U, Pb, and Th measurements from each spot analysis were used to calculate a model age for the formation of each uraninite particle. The U, Pb, and Th analyses and calculated age determinations are provided as additional information on the timing and origin of the uranium deposition within the unusual breccia pipe deposits of northwestern Arizona. One of the analyzed samples (CMCH-053-21A) was selected from drill core of a U-Cu ore body of the Canyon deposit, hosted in a solution-collapse breccia pipe. This deposit lies about 750 to 2,000 ft (230 to 610 m) below the surface about 6.1 miles (10 km) south-southeast of Tusayan, Arizona, at latitude 35.88333 North, longitude -112.09583 West (datum WGS 1984). Energy Fuels Inc., owner and operator of the property, conducted extensive drilling into the Canyon deposit, delineating the extent and uranium and copper content of the ore bodies (Mathisen and others, 2017). Mining facilities, including a shaft, have been developed by Energy Fuels at the deposit. The company renamed the Canyon mine as the “Pinyon Plain mine” in 2021. As of October 2021, they await favorable economic conditions to resume mining operations and recover the ore. An earlier-published data release (Van Gosen and others, 2020a) provides the geochemical analyses of 63 elements for 35 drill core samples of the Canyon deposit that were collected by the USGS. X-ray diffraction (XRD) analyses were performed on 28 of these samples to examine their mineralogy; the raw XRD data are provided in Van Gosen and others (2020a). In addition to the XRD analyses, ore mineralogy was also determined by examinations of thin sections of 21 of the ore samples using a scanning electron microscope equipped with an energy dispersive spectrometer (SEM-EDS). The mineralogical analyses are published in Van Gosen and others (2020c). The bulk geochemistry and mineralogy of Canyon deposit sample CHCH-053-21A, analyzed in this study, is provided in Van Gosen and others (2020a, 2020b). The geochemical and mineralogical analysis of ore samples collected from the Hack II deposit, also hosted by a solution-collapse breccia pipe, are published in another data release (Van Gosen and others, 2020b). That data release includes the bulk geochemistry and mineralogy of samples 84-HJW-12 and 84-HJW-3A, which were examined by this study. The Hack II deposit is one of four breccia pipes mined in Hack Canyon near its intersection with Robinson Canyon, approximately 30 miles (48 km) southwest of Fredonia and 9 miles (14.5 km) north-northwest of Kanab Creek, at latitude 36.58219 north, longitude -112.81059 west (datum of WGS84). Mining began at Hack II in 1981 and ended in May 1987. The USGS collected the samples from the Hack II mine in 1984 from underground exposures during active mining. The Canyon and Hack II deposits are representative of numerous other uranium deposits hosted by solution-collapse breccia pipes in the Grand Canyon region of northwest Arizona. These U-Cu deposits occur within matrix-supported, vertical columns of breccia (a "breccia pipe") that formed by solution and collapse of sedimentary strata (Wenrich, 1985; Alpine, 2010). The breccia pipes average about 300 ft (90 m) in diameter and can extend vertically for as much as 3,000 ft (900 m), from their base in the Mississippian Redwall Limestone to as stratigraphically high as the Triassic Chinle Formation. The regions north, south, and east of the Grand Canyon host hundreds of solution-collapse breccia pipes (Van Gosen and others, 2016). Six decades of exploration across the region has found that most of these breccia pipes are not mineralized or substantially mineralized, and only a small percentage of the breccia pipes contain ore-grade uranium deposits. The mineralized breccia pipes contain concentrations of uranium, arsenic, copper, silver, lead, zinc, cobalt, and nickel minerals (Wenrich, 1985), which is reflected in the data sets of Van Gosen and others (2020a, 2020b, 2020c). The Canyon mine sample (CMCH-053-21A) yielded generally consistent age results whether spots were divided by textural type or lumped together. Only those analyses from uraninite as inclusions in chalcopyrite (Cu sulfide) had unusual scatter, possibly due to Pb loss to the sulfide host. The full CMCH-053-21A data set provide a remarkably consistent estimated date at 118.0 ± 4.5 million years ago (Ma) with a mean square of weighted deviates (MSWD) of 0.35 based on 44 of 47 measurements (the low MSWD suggests that the individual errors may have been overestimated). The number after the +/- is one standard deviation of the age in Ma. The Hack II mine sample (84-HJW-12) yielded a wide range of calculated dates. Fine-grained uraninite contained virtually no Pb and gave first-pass model ages all less than 3 Ma. These were not included in further analyses. The remaining 32 analyses, all from uraninite with the droplet-like texture, gave consistently older ages ranging 72 to 233 Ma. Individual droplets or clusters of grains typically gave more coherent age ranges. There was no compelling reason to reject any of these data; however, the aggregate weighted date of 151 ± 16 Ma (MSWD = 12) is probably geologically meaningless. Examination of histograms of the whole data set and an older subset show evidence of several maxima. Grouping of these into younger, intermediate, and older groups is suggestive of coherent age ranges of 112 ± 6, 175 ± 9, and 213 ± 10 Ma, respectively. A second sample from this deposit, 84-HJW-3A, yielded no usable geochronological data on microprobe analysis due to Pb concentrations below detection limits. The microprobe analyses of this sample are included in this data release as the chemical results may be useful. References cited above: Alpine, A.E., ed., 2010, Hydrological, geological, and biological site characterization of breccia pipe uranium deposits in northern Arizona: U.S. Geological Survey Scientific Investigations Report 2010-5025, 353 p., 1 pl., scale 1:375,000, at http://pubs.usgs.gov/sir/2010/5025/. Bowles, J.F.W., 1990, Age dating of individual grains of uraninite in rocks from electron microprobe analyses: Chemical Geology, v. 83, nos. 1-2, p. 47-53, https://doi.org/10.1016/0009-2541(90)90139-X. Mathisen, M.B., Wilson, V., and Woods, J.L., 2017, Technical report on the Canyon mine, Coconino County, Arizona, U.S.A.: NI 43-101 Report, prepared by Roscoe Postle Associates Inc. for Energy Fuels Resources (USA) Inc., October 6, 2017, 139 p., accessed October 18, 2021, at https://www.energyfuels.com/pinyon-plain-mine. Van Gosen, B.S., Johnson, M.R., and Goldman, M.A., 2016, Three GIS datasets defining areas permissive for the occurrence of uranium-bearing, solution-collapse breccia pipes in northern Arizona and southeast Utah: U.S. Geological Survey data release, https://doi.org/10.5066/F76D5R3Z. Van Gosen, B.S., Benzel, W.M., and Campbell, K.M., 2020a, Geochemical and X-ray diffraction analyses of drill core samples from the Canyon uranium-copper deposit, a solution-collapse breccia pipe, Grand Canyon area, Coconino County, Arizona: U.S. Geological Survey data release, https://doi.org/10.5066/P9UUILQI. Van Gosen, B.S., Benzel, W.M., Kane, T.J., and Lowers, H.A., 2020b, Geochemical and mineralogical analyses of uranium ores from the Hack II and Pigeon deposits, solution-collapse breccia pipes, Grand Canyon region, Mohave and Coconino Counties, Arizona, USA: U.S. Geological Survey data release, https://doi.org/10.5066/P9VM6GKF. Van Gosen, B.S., Benzel, W.M., Lowers, H.A., and Campbell, K.M., 2020c, Mineralogical analyses of drill core samples from the Canyon uranium-copper deposit, a solution-collapse breccia pipe, Grand Canyon area, Coconino County, Arizona, USA: U.S. Geological Survey data release, https://doi.org/10.5066/P9F745JX. Wenrich, K.J., 1985, Mineralization of breccia pipes in northern Arizona: Economic Geology, v. 80, no. 6, p. 1722-1735, https://doi.org/10.2113/gsecongeo.80.6.1722.