The Municipal Utility District Boundaries and Attributes dataset contains boundary information and relevant attributes for Municipal Utility Districts (MUDs) located within Montgomery County, Texas. MUDs are created to finance, construct, and operate water, sewer, and drainage facilities to serve new development areas.This dataset is sourced from the Montgomery Central Appraisal District and is updated monthly to ensure accuracy.Data source: Montgomery Central Appraisal District

Geospatial data about Williamson County, Texas Municipal Utility Districts. Export to CAD, GIS, PDF, CSV and access via API.

MUDNAME name of Municipal Utility District acronym acceptable in upper case with Fort Bend spelled out. Provide associated numeric / alpha code example (FORT BEND COUNTY MUD 134A)MUDNOTES specific information related to the Municipal Utility District boundaryENTITYCODE Orion code with alpha numeric combination (alpha is capitalized)CONTACTTAXCOLLECTOR the tax collector name as identified on the Entity Mailing List (proper case)CONTACTPHONENUMBER (area code)-first three digits-last four digits (numeric only) as identified in OrionCONTACTMAILINGADDRESS1 the tax collector name as identified on the Entity Mailing List (proper case)CONTACTMAILINGADDRESS2 the primary contact name as identified in Orion (proper case)CONTACTMAILINGADDRESS3 the alpha numeric address as identified in the Entity Mailing List (proper case. No additional characters)CONTACTMAILINGADDRESS4 the city, state and zip code as identified in the Entity Mailing List (proper case, comma acceptable, dash for additional zip code acceptable)CONTACTACTUALADDRESS1 not requiredCONTACTACTUALADDRESS2 not requiredCONTACTACTUALADDRESS3 not requiredSTATECODE eight digit code (format xxx-xxx-xx) as provided by state comptroller https://comptroller.texas.gov/taxes/property-tax/county-directory/fortbend.phpEXCEPTIONENTITIES not requiredEXCEPTIONENTITIESNOTES not requiredACCTDATEENTERED date of last updateACCTDATEENTEREDNOTES latest documentation number affecting boundary (instrument number, ordinance number)ACCTDATEENTEREDUSER individual updating recordACCTDATEVERIFIED date of review and approvalACCTDATEVERIFIEDNOTES specific notes related to the approval of the recordACCTDATEVERIFIEDUSER individual reviewing and approving dataCALCULATEDACREAGE GIS calculated acreageCALCULATEDSQMILES GIS calculated square milesIMAGES not requiredRECORDEDACRES acreage as recorded by document or TCEQ website for the full boundary of entity. The number does not account for those boundaries split by county line or other mitigating factors.

Geospatial data about Brazoria County, Texas MUD Districts. Export to CAD, GIS, PDF, CSV and access via API.

East Bay Municipal Utility District with ward boundaries, within the extent of Alameda County; boundaries have been updated to show 2011-2012 redistricting changes. Boundaries represent voting districts (i.e., district designation for each address) and therefore may align with parcel boundaries in cases where parcels (and sometimes residences) are divided by the true city/district boundary.

This layer shows the various Municipal Utility Districts (MUD) within the City of Pearland.

Municipal Utility Districts (MUD) In the City of Pflugerville, TX. This data updates automatically when SDE is edited. If downloaded from Open Data, this data is the most current to the date of download.

This digital map database provides an areally continuous representation of the Quaternary surficial deposits of the San Francisco Bay region merged from the database files from Knudsen and others (2000) and Witter and others (2006). The more detailed mapping by Witter and others (2006) of the inner part of the region (compiled at a scale of 1:24,000), is given precedence over the less detailed mapping by Knudsen and others (2000) of the outer part of the area (compiled at a scale of 1:100,000). The Quaternary map database is accompanied by a list of the map-unit names represented by polygon identities, a digital map index of the 1:24,000-scale topographic quadrangles of the region, and a figure illustrating the contents of the database. The Quaternary map database includes line work and the identity of the Quaternary map units, but no further description of the map units or how they were mapped. Use of the database should thus be accompanied by consultation with the original reports, which describe the map units and mapping procedures: citation of this database should be accompanied by citation of those original reports. As with all such digital maps, use of this database should attend to the compilation scales involved and not try to extract spatial detail or accuracy beyond those limits. Database layers: SFBQuat-lns: Quaternary map database: unit boundaries and their attributes SFBQuat-pys: Quaternary map database: polygons and their attributes SFBIndex-lns: Boundaries of 7.5-minute quadrangles for the map area, distinguishing those that form boundaries of 15-minute and 30x60-minute quadrangles SFBIndex-pys: 7.5-minute quadrangles, and for those within map area, their names and the names of the 30x60-minute quadrangles that contain them. The liquefaction ratings presented in the original reports for the various Quaternary map units remain valid and can be assigned to the units in this database if desired, with ratings of Witter and others (2006) given precedence. Assembly of the Quaternary map database involved stripping out all the information from the source maps that dealt with liquefaction, a major component of the original reports, and adjusting line work at the common boundary between the two source maps to produce a nearly seamless spatial database. The common boundary between the two sources is retained. Mismatches remaining at that common boundary are of two types: (1) contrasts in the degree of subdivision of the deposits resulting from the different compilation scales, and (2) terminations of narrow bands of water and artificial fill and levees at quadrangle boundaries that resulted from differences in details shown on the 1:24,000-scale topographic maps used as a source of mapping information in the original reports. The illustrative figure accompanying the database shows the content of the database plotted at a scale of 1:275,000, with the different map units distinguished by color and the different types of lines distinguished by symbol and color. An index map in that figure shows the 165 7½-minute quadrangles covering the region and the areas of the two source maps. Knudsen, K.L., Sowers, J.M., Witter, R.C., Wentworth, C.M., Helley, E.J., Nicholson, R.S., Wright, H.M., and Brown, K.M., 2000, Preliminary maps of Quaternary deposits and liquefaction susceptibility, nine-county San Francisco Bay region, California: a digital database: U.S. Geological Survey Open File Report 00-444. http://pubs.usgs.gov/of/2000/of00-444/ Witter, R.C., Knudsen, K.L, Sowers, J.M., Wentworth, C.M., Koehler, R.D., Randolph, C. E., Brooks, S.K., and Gans, K.D., 2006, Maps of Quaternary Deposits and Liquefaction Susceptibility in the Central San Francisco Bay Region, California: U.S. Geological Survey Open-File Report 06-1037 (http://pubs.usgs.gov/of/2006/1037)

This data set includes topography and backscatter intensity of the sea floor of the Hudson Shelf Valley, located offshore of New York and New Jersey. The data were collected with a multibeam sea floor mapping system on surveys conducted November 23 - December 3, 1996, October 26 - November 11, 1998, and April 6 - 30, 2000. The surveys were conducted using a Simrad EM 1000 multibeam echo sounder mounted aboard the Canadian Hydrographic Service vessel Frederick G. Creed. This multibeam system utilizes 60 electronically aimed receive beams spaced at intervals of 2.5 degrees that insonify a strip of sea floor up to 7.5 times the water depth (swath width of 100 to 200 m within the survey area). Maps derived from the mulitbeam observations show sea floor topography, shaded relief, and backscatter intensity (a measure of sea floor texture and roughness). The data are gridded at 12 m/pixel. THIS DATA SET IS PRELIMINARY; PUBLICATION OF A FINAL DATA SET IS PLANNED IN 2003

The Woodlands land and property features web map including commercial & residential properties, area & boundary, open space reserves (OSR's), streets, neighborhoods & subdivision plats, MUD's (Municipal Utility Districts), RUD (Right-of-Way Utility District), associations, villages, county commissioner precincts, GreenUp (Earth Day) sites & routes, parks, aquatic pools, trails & trail features, lakes & ponds, and branches, creeks & streams.Users may explore the map using 'Search' box tool to find a property by address or business by name, and toggle on additional layers from layers list to display, interact with and query even more feature data on the map.

description: "West Mojave Route Network Project Travel Management Area 5 - Map 12 of 20 (Shows Route Designations Decisions for Alternatives 1, 2, 3 and 4, Planning Area Boundary, Travel Management Area Boundary, Subregion Boundaries, Field Office Boundaries, Surface Management Agencies, Land Ownership, Route Designations, Areas of Critical Environmental Concern, Sensitive Resource Receptors, Restricted Areas, Wilderness Study Areas, Off-highway Vehicle Open Areas, National Monument Boundaries, Special Recreation Management Areas, Desert Linkage Network, Soil Erosion, Air Quality Management Districts, California Air Basins, and Unusual Plant Assemblages) n n n1. Travel Management Area 5 - Map 12 of 20 n2. WEMO Map Index Figure (Locator Map) n3. Map and Resource Data n n a. Labels ni. Route Designation n Motorized n Non-BLM n Non-Mechanized n Non-Motorized n Transportation Linear Disturbance n Route with Subdesignation n WEMO Planning Area n WEMO Travel Management Area n WEMO Subregion n BLM Field Office Boundary nii. Land Ownership n Bureau of Land Management n Forest Service n National Park Service n Fish and Wildlife Service n Bureau of Reclamation n Bureau of Indian Affairs n Department of Defense n Other Federal n State n Local Government n Private n iii. Resource Data n Area within 1/4 mile of a sensitive receptor n Area within 1 mile of a sensitive receptor n Residential Area n Area of Critical Environmental Concern n National Conservation Lands n Special Recreation Management Area n Desert Linkage Network n Area Prone to Erosion Due to Slopes Greater than 10 Percent niv. Air Quality Management Districts n Mojave Desert n v. California Air Basins n Mojave Desert n vi. Unusual Plant Assemblage n None n n b. Base Data n i. City or Town (Data Source: USGS Geographic Names Inventory System) nii. Major Roads (Data Source: US Census TIGER/Line) n iii. County Boundary (Data Source: ESRI) niv. BLM Field Office Boundary (Data Source: BLM State Office) n n c. WEMO Planning Boundaries n i. WEMO Planning Area (Data Source: BLM State Office) n ii. Travel Management Area 5 (Data Source: BLM Barstow Field Office) n iii. Subregions -(Data Source: BLM Barstow Field Office) n n d. Project Alternatives n i. Alternative 1 - No Action (Data Source: BLM Barstow Field Office) n ii. Alternative 2 Conservation (Data Source: BLM Barstow Field Office) n iii. Alternative 3 Increased Access (Data Source: BLM Barstow Field Office) n iv. Alternative 4 - Preferred (Data Source: BLM Barstow Field Office) n n e. Non-BLM Routes or routes not under BLM jurisdiction (Data Source: BLM State Office) n n f. Resource Descriptions and Data Sources n n i. Residential Area are areas near residences (Data Source: BLM State Office) n ii. Wilderness Areas are areas that include federally designated wildernesses (Data Source: BLM State Office) n iii. Area of Critical Environmental Concern are federally protected areas with special natural resources (Data Source: BLM State Office) n iv. National Monuments are federally designated through Presidential Proclamation (Data Source: BLM State Office) n v. National Conservation Lands are lands that the Bureau of Land Management for conservation purposes federally designates these (Data Source: BLM State Office) n vi. Areas Prone to Erosion are areas that are likely to experience erosion (Data Source: BLM State Office) n vii. Air Quality Management Districts are federally designated air quality districts with boundaries (Data Source: CA Air Resource Board) n viii. California Air Basins are designated by California with boundaries (Data Source: CA Air Resource Board) n"; abstract: "West Mojave Route Network Project Travel Management Area 5 - Map 12 of 20 (Shows Route Designations Decisions for Alternatives 1, 2, 3 and 4, Planning Area Boundary, Travel Management Area Boundary, Subregion Boundaries, Field Office Boundaries, Surface Management Agencies, Land Ownership, Route Designations, Areas of Critical Environmental Concern, Sensitive Resource Receptors, Restricted Areas, Wilderness Study Areas, Off-highway Vehicle Open Areas, National Monument Boundaries, Special Recreation Management Areas, Desert Linkage Network, Soil Erosion, Air Quality Management Districts, California Air Basins, and Unusual Plant Assemblages) n n n1. Travel Management Area 5 - Map 12 of 20 n2. WEMO Map Index Figure (Locator Map) n3. Map and Resource Data n n a. Labels ni. Route Designation n Motorized n Non-BLM n Non-Mechanized n Non-Motorized n Transportation Linear Disturbance n Route with Subdesignation n WEMO Planning Area n WEMO Travel Management Area n WEMO Subregion n BLM Field Office Boundary nii. Land Ownership n Bureau of Land Management n Forest Service n National Park Service n Fish and Wildlife Service n Bureau of Reclamation n Bureau of Indian Affairs n Department of Defense n Other Federal n State n Local Government n Private n iii. Resource Data n Area within 1/4 mile of a sensitive receptor n Area within 1 mile of a sensitive receptor n Residential Area n Area of Critical Environmental Concern n National Conservation Lands n Special Recreation Management Area n Desert Linkage Network n Area Prone to Erosion Due to Slopes Greater than 10 Percent niv. Air Quality Management Districts n Mojave Desert n v. California Air Basins n Mojave Desert n vi. Unusual Plant Assemblage n None n n b. Base Data n i. City or Town (Data Source: USGS Geographic Names Inventory System) nii. Major Roads (Data Source: US Census TIGER/Line) n iii. County Boundary (Data Source: ESRI) niv. BLM Field Office Boundary (Data Source: BLM State Office) n n c. WEMO Planning Boundaries n i. WEMO Planning Area (Data Source: BLM State Office) n ii. Travel Management Area 5 (Data Source: BLM Barstow Field Office) n iii. Subregions -(Data Source: BLM Barstow Field Office) n n d. Project Alternatives n i. Alternative 1 - No Action (Data Source: BLM Barstow Field Office) n ii. Alternative 2 Conservation (Data Source: BLM Barstow Field Office) n iii. Alternative 3 Increased Access (Data Source: BLM Barstow Field Office) n iv. Alternative 4 - Preferred (Data Source: BLM Barstow Field Office) n n e. Non-BLM Routes or routes not under BLM jurisdiction (Data Source: BLM State Office) n n f. Resource Descriptions and Data Sources n n i. Residential Area are areas near residences (Data Source: BLM State Office) n ii. Wilderness Areas are areas that include federally designated wildernesses (Data Source: BLM State Office) n iii. Area of Critical Environmental Concern are federally protected areas with special natural resources (Data Source: BLM State Office) n iv. National Monuments are federally designated through Presidential Proclamation (Data Source: BLM State Office) n v. National Conservation Lands are lands that the Bureau of Land Management for conservation purposes federally designates these (Data Source: BLM State Office) n vi. Areas Prone to Erosion are areas that are likely to experience erosion (Data Source: BLM State Office) n vii. Air Quality Management Districts are federally designated air quality districts with boundaries (Data Source: CA Air Resource Board) n viii. California Air Basins are designated by California with boundaries (Data Source: CA Air Resource Board) n"

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour …Show full descriptionAt this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

The U.S. Geological Survey, in cooperation with the National Park Service, Yellowstone Center for Resources, as part of work for the Yellowstone Volcano Observatory, has compiled a shapefile map of thermal areas and thermal water bodies in Yellowstone National Park. A thermal area is a continuous, or nearly continuous, geologic unit that contains one or more thermal features (e.g., hot springs, mud pots, or fumaroles); hydrothermally altered rocks and/or hydrothermal mineral deposits; heated ground and/or geothermal gas emissions; and is generally barren of vegetation or has stressed / dying vegetation. There are more than 10,000 thermal features in Yellowstone, most of which are clustered together into about 120 distinct thermal areas (e.g., Upper Geyser Basin, Crater Hills Thermal Area, or Roadside Springs). A thermal water body is a body of water, usually a lake, pond, or wetland area, that is thermally emissive because it receives heated water from a nearby thermal area, nearshore thermal springs, or from underwater vents. The shapefile released here is based on a thermal area polygon shapefile that was initially provided by the Spatial Analysis Center at the Yellowstone Center for Resources in Yellowstone National Park. The thermal area polygons were initially based on field mapping (by R. Hutchinson and others, unpublished data, 1997) and digitizing boundaries over high-spatial-resolution (1 m/pixel) visible color orthophotos from the National Agriculture Imagery Program (NAIP) acquired in 2006. Updates to this map are based on more recent field mapping and remote sensing data analysis, including nighttime thermal infrared data (e.g., ASTER and Landsat 8/9), high-spatial-resolution visible data from commercial satellites (e.g., WorldView-3), and NAIP imagery from 2015, 2017, 2019, and 2022. The downloadable shapefile contains a map of these thermal areas and thermal water bodies with information (if available) about their chemistry and thermal activity. The names of the thermal areas are either derived from the USGS Geographic Names Information System (GNIS) or are locally used names, as indicated in the attribute table. Thermal area mapping in Yellowstone is a work in progress, partly because there are still remote areas that have not yet been explored in detail, and partly because changes occur frequently. Thermal areas expand and contract, develop and decay, and migrate – over time scales that range from weeks to years. Thus, this map will be periodically assessed and updated. A note about safety: Thermal areas can be dangerous, with scalding water, mud, or gases that are sometimes hidden beneath unstable ground. Unstable ground sometimes looks solid, but stepping onto unstable ground can result in breaking through a thin crust and being exposed to scalding water, mud, or gases, which can cause severe burns. Since the establishment of the National Park, more than 20 people have died from burns suffered after they entered or fell into a hot spring. For the safety of park visitors and the protection of delicate thermal formations, it is prohibited to enter a thermal area in the back country, and one must stay on the trails or boardwalks when entering front country thermal areas (unless working in a thermal area on an official permit).

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

description: Debris flows, debris avalanches, mud flows and lahars are fast-moving landslides that occur in a wide variety of environments throughout the world. They are particularly dangerous to life and property because they move quickly, destroy objects in their paths, and can strike with little warning. The purpose of this map is to show where debris flows have occurred in the conterminous United States and where these slope movements might be expected in the future.; abstract: Debris flows, debris avalanches, mud flows and lahars are fast-moving landslides that occur in a wide variety of environments throughout the world. They are particularly dangerous to life and property because they move quickly, destroy objects in their paths, and can strike with little warning. The purpose of this map is to show where debris flows have occurred in the conterminous United States and where these slope movements might be expected in the future.

Connecticut Historic Shoreline Wetlands: 1880s NOS T-Sheet Shoreline Features is a 1:10,000-scale, line feature-based layer that includes information depicting historic shoreline features and wetland boundaries for areas of coastal Connecticut during the 1880s. The layer depicts information found on topographic survey sheets (T-sheets) from the US Coast and Geodetic Survey (USC&GS), a predecessor to the National Ocean Service (NOS). The layer represents conditions at a particular point in time. The layer does not depict current conditions. The layer includes ground condition features such as approximate shoreline, shoreline, wetland shoreline, wetland upland boundaries, wetland interior boundaries, man-made shoreline, jetties/breakwaters/groins, and piers/ramps/docks. Semi-submerged marshes, referred to here as "low marshes," ocurring where it is possible to discern marsh-like features waterward of the shoreline are also included. Off shore and riverine islands and rocks may be included depending on the quality of their depiction on the t-sheet. It does not include any non shoreline-centric elements that may have been depicted on the t-sheets such as buildings, roads, bridges, etc., nor does it include other off-shore features like sandbars, mud flats, tidal flats, etc. Features are line locations that represent the approximate location of shoreline features and wetland boundaries. Shoreline, as depicted on the T-sheets that pre-date 1927, reference an approximation of Mean High Water (MHW). Although MHW is technically determined by averaging the height of the high water line, (HWL) the landward extent of the last high tide over a 19 year lunar cycle, USC&GS topographers appoximated MHW by familarizing themselves with the tidal conditions in a given area and noting the assorted physical characteristics of the beach. (For a more complete description of this and other shoreline indicators, the reader is directed to the following article: "Historical Shoreline Change: Error Analysis and Mapping Accuracy," Crowell, M., Leatherman, S., and Buckley, M. Journal of Coastal Research, Vol 7, No. 3, 1991, pp 839-852.) Attribute information is comprised of codes to identify individual features, encode shoreline feature type information, and cartographically represent (symbolize) shoreline features on a map. These codes were derived in part from the National Oceanic & Atmospheric Administration (NOAA) Coastal Services Center (CSC) Historic Digital Shoreline Capture project and modified by the State of Connecticut Department of Environmental Protection to address the inclusion of wetland areas. This data was compiled at 1:10,000 scale. This data is not updated. Purpose: 1880s NOS T-Sheet Shoreline Features is 1:10,000-scale data. It depicts the location of historic shoreline features and wetland boundaries for all of coastal Connecticut with the exception of the area of New Haven Harbor from the West River in West Haven to the New Haven/East Haven town boundary. The features also extend slightly beyond the Connecticut state lines into Rye, New York and Westerly, Rhode Island. Use this layer to display historic shoreline and wetlands. Since this data may be considered a crucial element in land use planning, determination of boundary extents, performing change studies for erosion and accretion examinations and other types of decision making this layer may also be used for analytic purposes. Use this layer with other 1:10,000-scale map data such as any other NOS T-sheet Shoreline or Wetland layers. Not intended for maps printed at map scales greater or more detailed than 1:10,000 scale (1 inch = 833.33 feet.) 1880s NOS T-Sheet Wetland Polygon Features is a 1:10,000-scale, polygon feature-based layer that includes information depicting historic wetlands for areas of coastal Connecticut during the 1880s. The layer depicts information found on topographic survey sheets (T-sheets) from the US Coast and Geodetic Survey (USC&GS), a predecessor to

The purpose of this project is to map the surficial geology of the sea floor of Historic Area Remediation Site (HARS) and changes in surficial characteristics over time. This GIS project presents multibeam and other data in a digital format for analysis and display by scientists, policy makers, managers and the general public.

This project presents maps of the sea floor in GIS format of the Historic Area Remedition Site (HARS), located offshore of New York and New Jersey. The data were collected with a multibeam sea floor mapping system on surveys conducted November 23 - December 3, 1996, October 26 - November 11, 1998, and April 6 - 30, 2000. The maps show sea floor topography, shaded relief, and backscatter intensity (a measure of sea floor texture and roughness) at a spatial resolution of 3 m/pixel, and locations of dredged material placed on the sea floor. The sea floor of the HARS, approximately 9 square nautical miles in area, is being remediated by placing at least a one-meter of clean dredged material on top of the existing surface sediments that exhibit varying degrees degradation resulting from previous disposal of dredged and other material. Comparison of the topography and backscatter intensity from the three surveys show changes in topography and surficial sediment properties resulting from placement of dredged material in 1996 and 1997 prior to designation of the HARS, as well as placement of material for remediation of the HARS. This study is carried out cooperatively by the U.S. Geological Survey and the U.S. Army Corps of Engineers.

Mapping and classifying the seabed of the West Greenland continental shelf. Marine benthic habitats support a diversity of marine organisms that are both economically and intrinsically valuable. Our knowledge of the distribution of these habitats is largely incomplete, particularly in deeper water and at higher latitudes. The western continental shelf of Greenland is one example of a deep (more than 500 m) Arctic region with limited information available. This study uses an adaptation of the EUNIS seabed classification scheme to document benthic habitats in the region of the West Greenland shrimp trawl fishery from 60┬░N to 72┬░N in depths of 61ÔÇô725 m. More than 2000 images collected at 224 stations between 2011 and 2015 were grouped into 7 habitat classes. A classification model was developed using environmental proxies to make habitat predictions for the entire western shelf (200ÔÇô700 m below 72┬░N). The spatial distribution of habitats correlates with temperature and latitude. Muddy sediments appear in northern and colder areas whereas sandy and rocky areas dominate in the south. Southern regions are also warmer and have stronger currents. The Mud habitat is the most widespread, covering around a third of the study area. There is a general pattern that deep channels and basins are dominated by muddy sediments, many of which are fed by glacial sedimentation and outlets from fjords, while shallow banks and shelf have a mix of more complex habitats. This first habitat classification map of the West Greenland shelf will be a useful tool for researchers, management and conservationists.

The Los Angeles County Flood Control District (District) was established in 1915 and encompasses approximately 2,758 square miles. The District operates and maintains one of the most complex systems of flood control and water conservation in the Country. The District’s current infrastructure includes 14 major dams and reservoirs, 483 miles of concrete and soft-bottom channels, 3,380 miles of underground storm drain conduits, 82,275 catch basins, 48 pump stations, 173 debris basins, 181 crib dams, 29 sediment placement sites, 27 spreading grounds, 21 low-flow diversion structures, 3 seawater barrier systems with 290 seawater barrier injection wells, 1 constructed wetland, and 1 mitigation bank area. Employees of the Los Angeles County Public Works (PW) serve as staff for the District. The District is separate from PW and funds of each entity remain in separate accounts. PW pays the District for the use of District equipment, materials and property used for County purposes. The District is empowered to carry out the objectives of the Los Angeles County Flood Control Act of 1915, California Water Code, Appendix, Chapter 28 (the Act). The objectives are to provide for the control and conservation of flood, storm and other wastewater and to protect from damage such as flood or storm waters, the harbors, waterways, public highways and property within the District. These powers are exercised by the County Board of Supervisors (Board), which acts as the governing body of the District. The duties of the Board include approving the District’s budget, determining the District’s tax rates, approving contracts, and determining when to issue bonds authorized by the voters of the District.

This map identifies the principal areas in the San Francisco Bay region that are likely to produce debris flows, which are also called "mudslides." Debris flows that occur in the bay region are fast-moving downslope flows of mud that may include rocks, vegetation, and other debris. These flows begin during intense rainfall as shallow landslides on steep slopes. The rapid movement and sudden arrival of debris flows pose a hazard to life and property during and immediately following the triggering rainfall. Debris flows in a given storm originate from a number of sources scattered throughout steep parts of the landscape, as shown in figure 1 (on map sheet; files sfbr- df.ps, al-df.ps, etc.). During subsequent storms, new debris flows originate from different sources. These various sources, however, are similar in topographic form because debris-flow initiation requires steep slopes and prefers concave parts of hillsides.