Montana 4th-Code Hydrologic Sub-Basins

USDA Natural Resources Conservation Service 19961112 Montana 4th-Code Hydrologic Sub-Basins vector digital data Helena, Montana Montana State Library http://nris.state.mt.us/nsdi/nris/e00/subbasin.zip http://nris.state.mt.us/nsdi/nris/shape/subbasin.zip Watershed_District This data set contains hydrologic unit boundaries at the Sub-Basin (4th-Code) level. This data set was created by aggregating 5th-Code Watersheds to the 4th-Code level. The 5th-Code Watershed database is described at and may be downloaded from http://nris.state.mt.us/nsdi/nris/hd109.html. The data was developed by delineating the boundary lines on 1:100,000 scale base maps or overlays and digitizing the delineated lines. The coverage version of this data set has 105 polygons that define 100 non-contiguos regions. There is a region subclass named "huc4" that has unique records for each 4th-code Sub-basin. The sub-basin hydrologic unit boundary provides a uniquely identified and uniform method of subdividing large drainage basins. These hydrologic units (approximately 250,000 to 3,500,000 acres) are useful in many programs supported by the Natural Resources Conservation Service and others. en 1996 publication date Complete Unknown -116.177957 -103.610897 49.182360 44.237955 111907.900049 1030202.299880 17716.699726 548149.300284 None Hydrologic unit Watershed boundary Drainage basin Sub-basin None Montana None The U.S. Department of Agriculture, Natural Resources Conservation Service, Montana State Office, should be acknowledged as the data source in products derived from these data. This data set is to be used as a primary reference source. This is public information and may be interpreted by organizations, agencies, units of government, or other based on needs, however, they are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the Natural Resources Conservation Service any authority for the decisions they make. Photographic or digital enlargement of this map to scales greater than 1:100,000 can cause misrepresentation of the data. If enlarged, the maps will not include the fine detail that would be appropriate for mapping at the large scale. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest revision of the data. Although these data have been processed successfully on a computer system at the U.S. Department of Agriculture, no warranty expressed or implied is made by the agency regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. The U.S. Department of Agriculture, nor any of its agencies are liable for misuse of the data. Nor is it liable for damage, transmission of viruses, or computer contamination through the distribution of these data sets. Montana State Library Gerry Daumiller Senior GIS Programmer mailing address

PO Box 201800

Helena Montana 59620-1800 USA (406) 444-5358 (406) 444-0581 gdaumiller@state.mt.us Monday-Friday, 8-5, Mountain Time http://nris.state.mt.us/nsdi/nris/subbasin.gif Simple image of the data set and/or its extent. GIF ESRI ArcCatalog 9.3.1.3500 Personal GeoDatabase Feature Class Polygon identifiers are manually checked with the original base map using the attribute file. Verification on polygon identification continuity of each side of a neatline is done visually on the computer screen as adjacent quad representations are assembled into larger area data layers. Certain node/geometry and topology polygon/chain relationships are collected or generated to satisfy topological requirements including: chains must begin and end at nodes and there are no duplicate lines or sliver polygons. Data beyond the state boundary is not included and is clipped at the boundary. All internal polygons are texted for closure and are checked using hard copy check plots. All data are checked for common boundary lines (i.e. adjacent polygons with the same label). The data is complete for the state of Montana. Meets national USDA NRCS specifications for the delineation of 5th-Code watersheds. The approximate horizontal accuracy of the base maps is 51 meters, assuming they meet National Map Accuracy Standards. The accuracy of the watershed maps is generally based on contour information available for the base maps. Such data may be supplemented with site visits to locate ridge lines for hydrologic unit boundaries in flat terrain areas or to identify changes in drainage patterns due to human or geologic activity. The difference in positional accuracy between the hydrologic unit boundaries and their digitized map locations is unknown. Hydrologic unit boundaries generally were digitized to be within 0.01 inches of their locations on the digitizing source (25 meters on the ground). The digital map elements are edge matched against the data for the adjacent quadrangle. Edge match locations generally do not deviate from centerline to centerline by more than 0.01 inches. USDA Natural Resources Conservation Service 1996 5th-Code Watersheds map Helena, Montana Montana State Library http://nris.state.mt.us/nsdi/nris/hd109.html 100000 electronic file 1996 publication date scs1 The data set is an aggregation of the polygons in this source to the 4th-Code level. Aggregate the 5th-code watersheds to create their 4th-code parent regions. withheld 20030610 withheld Dataset copied. withheld 20050316 10134100 Dataset moved. withheld 20061002 08495600 Dataset copied. withheld 20061002 08523000 Dataset copied. withheld 20110411 12565200 Vector Simple FALSE 0 TRUE FALSE coordinate pair 0.002048 0.002048 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 GCS_North_American_1983 NAD_1983_StatePlane_Montana_FIPS_2500 MT_Wetland_Properties Region Attribute Table ESRI Feature Class 0 OBJECTID_1 OBJECTID_1 OID 4 10 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. OBJECTID OBJECTID Integer 4 9 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. Shape Geometry 4 0 0 Name NAME String 20 0 0 SHAPE_LENG SHAPE_LENG Double 8 38 8 AVAIL_CRED AVAIL_CRED Double 8 38 8 District DISTRICT String 2 0 0 SHAPE.AREA SHAPE.AREA Double 0 0 0 SHAPE.LEN SHAPE.LEN Double 0 0 0 Montana State Library Gerry Daumiller Senior GIS Programmer mailing address

PO Box 201800

Helena Montana 59620-1800 USA (406) 444-5358 (406) 444-0581 gdaumiller@state.mt.us Monday-Friday, 8-5, Mountain Time Users must assume responsibility to determine the usability of this data for their purposes. Contact the State Library to see if the data is available as hardcopy maps. For-profit organizations must pay our costs to reproduce the data. Fees can be waived if doing Government work. Arc/Info Export 0.000 0.000 http://nris.state.mt.us/nsdi/nris/e00/subbasin.zip ESRI Shapefile 0.000 0.000 http://nris.state.mt.us/nsdi/nris/shape/subbasin.zip None Downloadable Data 20100413 Montana State Library Gerry Daumiller mailing address

PO Box 201800

Helena Montana 59620-1800 USA (406) 444-5358 (406) 444-0581 gdaumiller@state.mt.us Monday-Friday, 8-5, Mountain Time FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 en local time 20240913 11564900 FALSE 20140127 16004700 20241206 7375900 MT_Wetland_Properties 002 Projected GCS_North_American_1983 Linear Unit: Meter (1.000000) NAD_1983_StatePlane_Montana_FIPS_2500 <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.1'><WKT>PROJCS["NAD_1983_StatePlane_Montana_FIPS_2500",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",600000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-109.5],PARAMETER["Standard_Parallel_1",45.0],PARAMETER["Standard_Parallel_2",49.0],PARAMETER["Latitude_Of_Origin",44.25],UNIT["Meter",1.0],AUTHORITY["EPSG",32100]]</WKT><XOrigin>-39292452.418923698</XOrigin><YOrigin>-33025605.939012501</YOrigin><XYScale>112893526.326019</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>32100</WKID><LatestWKID>32100</LatestWKID></ProjectedCoordinateSystem> 1.0 FGDC CSDGM Metadata 150000000 5000 ItemDescription Esri ArcGIS 10.2.0.3348 Montana Department of Transportation Montana Wetland Properties 111907.900049 1030202.29988 548149.300284 17716.699726 1 -116.177957 -103.610897 49.18236 44.237955 1 Montana Department of Transportation Montana Wetland Properties <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Montana Department of Transportation Montana Wetland Properties</SPAN></P></DIV></DIV></DIV> Montana Department of Transportation MDT Montana of Transportation Wetland <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This service is provided "as-is" without warranty of any kind. The Montana Department of Transportation makes no representations or warranties whatsoever with respect to the accuracy or completeness of this service and assumes no responsibility for the suitability of this service for a particular purpose; and MDT will not be liable for any damages incurred as a result of errors in this service.</SPAN></P></DIV></DIV></DIV> ISO 19115 Geographic Information - Metadata DIS_ESRI1.0 dataset 002 withheld Local Area Network 0.000 Personal GeoDatabase Feature Class Feature Class NAD_1983_StatePlane_Montana_FIPS_2500 EPSG 8.1.1 0 20241206