U.S. Department of Agriculture, Natural Resources Conservation Service, National Geospatial Center of Excellence 20130830 vector digital data 501 W. Felix Street, Bldg. 23, Fort Worth, Texas, 76115, UNITED STATES U.S. Department of Agriculture, Natural Resources Conservation Service, National Geospatial Center of Excellence https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/HydrologicUnits/WBDHU10_MT.zip https://mslservices.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={0077A7D3-F6C3-4D08-9837-410E79A12FCC} This data set is a complete digital hydrologic unit boundary layer of the Watershed (10-digit) 5th level for Montana. This data set consists of geo-referenced digital data and associated attributes created in accordance with the "Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3" (04/01/2009). https://pubs.usgs.gov/publication/tm11A34 Polygons are attributed with hydrologic unit codes, name, size, type of watershed, and flow modification. The data is currently updated through the USGS National Hydrography Dataset (NHD) Program and replicated to NRCS twice per year. The Watershed and Subwatershed hydrologic unit boundaries provide a uniquely identified and uniform method of subdividing large drainage areas. The smaller sized 6th level sub-watersheds (up to 250,000 acres) are useful for numerous application programs supported by a variety of local, State, and Federal Agencies. This data set is intended to be used as a tool for water-resource management and planning activities, particularly for site-specific and localized studies requiring a level of detail provided by large-scale map information. The dataset is seamless and, for the most part, a nationally consistent geospatial database. 2024 publication date In work Biannually -117.835305 -101.435781 50.713100 43.696816 ISO 19115 Topic Categories boundaries inlandWaters None basin boundaries hydrology hydrologic unit hydrologic unit code HUC HUC10 region sub-basin sub-region subwatershed watershed watershed boundaries Watershed Boundary Dataset WBD None MSDI Montana Spatial Data Infrastructure None Montana United States U.S. Canada None June 27, 2013 None The distributor shall not be held liable for improper or incorrect use of this data, based on the description of appropriate/inappropriate uses described in this metadata document. It is strongly recommended that this data is directly acquired from the distributor and not indirectly through other sources which may have changed the data in some way. These data should not be used at scales greater than 1:24,000 for the purpose of identifying hydrographic watershed boundary feature locations in the U.S.A. The NRCS should be acknowledged as the data source in products derived from these data. The Watershed Boundary Dataset is public information and may be interpreted by all organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application of the data. Federal, State, or local regulatory bodies are not to reassign to the Natural Resources Conservation Service any authority for the decisions they make. The Natural Resources Conservation Service will not perform any evaluations of these maps or purposes related solely to State or local regulatory programs. Photographic or digital enlargement of these maps to scales greater than that at which they were originally delineated can result in misrepresentation of the data. If enlarged, the maps will not include the fine detail that would be appropriate for mapping at the small scale. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data from the source distributor. The Montana State Library Geographic Information Services provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time. U.S. Department of Agriculture, Natural Resources Conservation Service, National Geospatial Center of Excellence Ken Becker Authoritative Data Team mailing and physical

501 W. Felix Street, Bldg. 23

Fort Worth Texas 76115 UNITED STATES 817-509-3394 817-509-3469 kenneth.becker@ftw.usda.gov 7:00 am - 3:30 pm, Central Time Prefer contact by e-mail. Montana State Library mailing

PO Box 201800

Helena MT 59620-1800 406-444-5354 Montana Relay 711 406-444-0266 geoinfo@mt.gov Funding and support for the Watershed Boundary Dataset (WBD) were provided by the Natural Resources Conservation Service, the Environmental Protection Agency, and the United States Geological Survey. Representatives from the U.S. Geological Survey and Environmental Protection Agency contributed a substantial amount of time and salary towards quality review and updating of the dataset in order to meet the Federal Standards for Delineation of Hydrologic Unit Boundaries. Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.1.3497 Vector GT-polygon composed of chains 937 NAD 1983 StatePlane Montana FIPS 2500 45.0 49.0 -109.5 44.25 600000.0 0.0 coordinate pair 0.000000008052669642211187 0.000000008052669642211187 meter D North American 1983 GRS 1980 6378137.0 298.257222101 WBDHU10_MT identifies watershed boundaries (as polygons) n/a TNMID Unique ID for The National Map Application MetaSourceID Currently blank SourceDataDesc Currently blank SourceOriginator Currently blank SourceFeatureID Currently blank LoadDate Date data loaded into USGS NHD platform GNIS_ID Currently 0 AreaAcres AreaSqKm HUC10 10 digit identifier Name HUType Closed Basin, Frontal, Multiple Outlet, Standard, Water HUMod Currently blank SHAPE Feature geometry. ESRI Coordinates defining the features. As needed OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. As needed STATES The "States" field includes the names of all state(s) that the subwatershed falls within. The 2-digit postal abbreviation in upper case and in alphabetical order was used, separated with a comma. Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3. Character String As needed Shape_STArea__ Shape_STLength__ Shape_Length Length of feature in internal units. ESRI Positive real numbers that are automatically generated. Shape_Area Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. Each hydrologic unit polygon has associated attributes stored in tabular format. An attribute, also called a field or column, is defined by name, type, size, and valid values. For this layer, these attributes are the Hydrologic Unit Codes, Names, Acreage, and States crossed. ftp://ftp-fc.sc.egov.usda.gov/NCGC/products/watershed/hu-standards.pdf Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3. The data is currently updated through the USGS National Hydrography Dataset (NHD) Program and replicated to NRCS twice per year. Montana State Library mailing

PO Box 201800

Helena MT 59620-1800 406-444-5354 Montana Relay 711 406-444-0266 geoinfo@mt.gov Downloadable Data The Montana State Library Geographic Information Services provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time. https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/HydrologicUnits/ 20140221 U.S. Department of Agriculture, Natural Resources Conservation Service, National Geospatial Center of Excellence Ken Becker Authoritative Data Team mailing and physical

501 W. Felix Street, Bldg. 23

Fort Worth Texas 76115 UNITED STATES 817-509-3394 817-509-3469 kenneth.becker@ftw.usda.gov 7:00 am - 3:30 pm, Central Time Prefer contact by e-mail. FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time The Montana State Library Geographic Information Services provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time. {e390ec2a-991c-4fff-88d0-603db1166fdf}