Current parcel boundaries are updated nightly. Parcels are intended to depict approximate location of land ownership. This data is not survey accuracy. The only people that can perform official surveys in the State of Colorado are Colorado Licensed Professional Land Surveyors.

This dataset contains information on building use and square footage detail for all “Building” construction permits.

Notes: The City’s Customer Self Service Portal can be used to search for individual permits. For more information on properties, including assessor information, please visit the Boulder County webpages: Open Data and Property Search.

The following supporting file can be used with this dataset for extra context:

Construction Permit Data Dictionary

Data available for download on our Open Data portal http://maps.bouldercounty.org/OpenData

Geospatial data about Boulder County, Colorado Buildings. Export to CAD, GIS, PDF, CSV and access via API.

Following the 2013 flood, the Colorado Water Conservation Board (CWCB) initiated a program to re-map the predicted 1% chance regulatory floodplain (100-year flood zone) of the most affected waterways. The program was named the "Colorado Hazard Mapping Program" or "CHAMP." This has been adopted by the Boulder County Commissioners, and will be used for regulatory decisions by the county. Not necessarily used for determining flood insurance.

There is a Boulder County focus inherited from the Boulder Creek Critical Zone program. If you are aware of a resource worth sharing please let us know. Files are in the versatile KML format for ease of sharing. If you have trouble importing these into ArcGIS or another program just let us know.

SITE EXTENTS: Kml's that shows study site extents. The main set of extents was created by Kyotaek Hwang.

SITE: BOULDER CREEK BOULDER COUNTY More Boulder County data can be found here: https://opendata-bouldercounty.hub.arcgis.com/ Selected kmls include: - Archaeologically_Sensitive_Areas - County_Open_Space - Lakes_and_Reservoirs (included modern glaciers) - mun_wtrsheds_czo (restricted areas) - Open_space_czo - Riparian_Areas_-_2013_ERE - Road_Map_Roads

GEOLOGY - Geological map by Ogden Tweto, clipped here to Boulder Creek, geo_czo_tweto https://coloradogeologicalsurvey.org/publications/tweto-geologic-map-colorado-1979/

• Clipped Cole & Braddock geologic map

SOILS Natural Resources Conservation Service soil maps https://www.nrcs.usda.gov - soilmu_a_co643_bc (boulder County) - soilmu_a_co645_arnf (Arapaho National Forest

GLACIERS Madole's Glaciers LGM. No online source. Check licensing before using in publication

TOPOGRAPHIC Topographic Lines created but the BcCZO from 30m USGS DEM

LIDAR For Lidar: OpenTopgraphy 2010 Lidar, Snow ON Snow Off https://portal.opentopography.org/dataSearch?search=Boulder%20creek%20CZO

SITE: COAL CREEK Coal Creek Trails

Geospatial data about Boulder County, Colorado Schools. Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about Boulder County, Colorado Sewer Lines. Export to CAD, GIS, PDF, CSV and access via API.

ArcGIS API application that shows study site extents, sampling and sensor locations, LIDAR, glacier extents, aerial imagery extents with downloads.

Please use the links below https://bcczo.colorado.edu/gisarc/arcapi.html

For more in-depth Lidar visit our friends at OpenTopgraphy and click http://criticalzone.org/boulder/data/dataset/2921/ HERE They are large storage for all our Lidar data.

Stormwater Management Facilities field collected in support of the Storm Drain System (MS4) GIS Mapping Project for Boulder County Public Health. The data was collected with a Trimble Geo-XH 6000 with a horizontal post-processed accuracy of 2.5 cm (.98in). The data was post processed using the base stations located in and around Boulder County. The data dictionary used to collect the data was developed in collaboration with the Boulder County Public Health Project Manager. This data was collected between April and December 2017 by Anderson Consulting Engineers.

Geospatial data about Boulder County, Colorado Streams. Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about Boulder County, Colorado Streets. Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about Boulder County, Colorado Zoning Districts. Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about Boulder County, Colorado Addresses. Export to CAD, GIS, PDF, CSV and access via API.

This 1m Digital Surface Model (DSM) is derived from first-stop Light Detection and Ranging (LiDAR) point cloud data from September 2005 for the Green Lakes Valley, near Boulder Colorado. The DSM was created from LiDAR point cloud tiles subsampled to 1-meter postings, acquired by the National Center for Airborne Laser Mapping (NCALM) project. This data was collected in collaboration between the University of Colorado, Institute of Arctic and Alpine Research (INSTAAR) and NCALM, which is funded by the National Science Foundation (NSF). The DSM has the functionality of a map layer for use in Geographic Information Systems (GIS) or remote sensing software. Total area imaged is 35 km^2. The LiDAR point cloud data was acquired with an Optech 1233 Airborne Laser Terrain Mapper (ALTM) and mounted in a twin engine Piper Chieftain (N931SA) with Inertial Measurement Unit (IMU) at a flying height of 600 m. Data from two GPS (Global Positioning System) ground stations were used for aircraft trajectory determination. The continuous DSM surface was created by mosaicing and then kriging 1 km2 LiDAR point cloud LAS-formated tiles using Golden Software's Surfer 8 Kriging algorithm. Horizontal accuracy and vertical accuracy is unknown. cm RMSE at 1 sigma. The layer is available in GEOTIF format approx. 265 MB of data. It has a UTM zone 13 projection, with a NAD83 horizonal datum and a NAVD88 vertical datum computed using NGS GEOID03 model, with FGDC-compliant metadata. A shaded relief model was also generated. A similar layer, the Digital Terrain Model (DTM), is a ground-surface elevation dataset better suited for derived layers such as slope angle, aspect, and contours. A processing report and readme file are included with this data release. The DSM is available through an unrestricted public license. The LiDAR DEMs will be of interest to land managers, scientists, and others for study of topography, ecosystems, and environmental change. NOTE: This EML metadata file does not contain important geospatial data processing information. Before using any NWT LTER geospatial data read the arcgis metadata XML file in either ISO or FGDC compliant format, using ArcGIS software (ArcCatalog > description), or by viewing the .xml file provided with the geospatial dataset.

This 1m Digital Surface Model (DSM) shaded relief is derived from first-stop Light Detection and Ranging (LiDAR) point cloud data from September 2005 for the Green Lakes Valley, near Boulder Colorado. The DSM was created from LiDAR point cloud tiles subsampled to 1-meter postings, acquired by the National Center for Airborne Laser Mapping (NCALM) project. This data was collected in collaboration between the University of Colorado, Institute of Arctic and Alpine Research (INSTAAR) and NCALM, which is funded by the National Science Foundation (NSF). The DSM shaded relief has the functionality of a map layer for use in Geographic Information Systems (GIS) or remote sensing software. Total area imaged is 35 km^2. The LiDAR point cloud data was acquired with an Optech 1233 Airborne Laser Terrain Mapper (ALTM) and mounted in a twin engine Piper Chieftain (N931SA) with Inertial Measurement Unit (IMU) at a flying height of 600 m. Data from two GPS (Global Positioning System) ground stations were used for aircraft trajectory determination. The continuous DSM surface was created by mosaicing and then kriging 1 km2 LiDAR point cloud LAS-formated tiles using Golden Software's Surfer 8 Kriging algorithm. Horizontal accuracy and vertical accuracy is unknown. cm RMSE at 1 sigma. The layer is available in GEOTIF format approx. 265 MB of data. It has a UTM zone 13 projection, with a NAD83 horizonal datum and a NAVD88 vertical datum computed using NGS GEOID03 model, with FGDC-compliant metadata. This shaded relief model was also generated. A similar layer, the Digital Terrain Model (DTM), is a ground-surface elevation dataset better suited for derived layers such as slope angle, aspect, and contours. A processing report and readme file are included with this data release. The DSM dataset is available through an unrestricted public license. The LiDAR DEMs will be of interest to land managers, scientists, and others for study of topography, ecosystems, and environmental change. NOTE: This EML metadata file does not contain important geospatial data processing information. Before using any NWT LTER geospatial data read the arcgis metadata XML file in either ISO or FGDC compliant format, using ArcGIS software (ArcCatalog > description), or by viewing the .xml file provided with the geospatial dataset.

Outlets were field collected within the project area for the Storm Drain System (MS4) GIS Mapping Project for Boulder County Public Health. The data was collected with a Trimble Geo-XH 6000 with a horizontal post-processed accuracy of 2.5 cm (.98in). The data was post processed using the base stations located in and around Boulder County. The data dictionary used to collect the data was developed in collaboration with the Boulder County Public Health Project Manager. This data was collected between April and December 2017 by Anderson Consulting Engineers and is updated by County staff as needed.

The University of Colorado Boulder campus map is created, updated and published by the CU CAD/GIS Office. It consists of twenty feature classes that make up the campus basic geography and is published primarily for use by the campus community.

The University of Colorado Boulder campus map is created, updated and published by the CU CAD/GIS Office. It consists of twenty feature classes that make up the campus basic geography and is published primarily for use by the campus community.

Geospatial data about Boulder County, Colorado Parcels. Export to CAD, GIS, PDF, CSV and access via API.