Wyoming Water Resource Data System (WRDS) (comp.) Trihydro Corporation (ed.) 2003 vector digital data Laramie, Wyoming Wyoming Water Resources Data System The Trihydro Corporation located in Laramie, Wyoming altered the extent, coordinate system and data format of this dataset. Alterations were made to meet the requirements set forth by the Wyoming Water Development Commission for the Platte River Basin Plan. See Supplemental Information under the Description section or Process Description under the Process Step for details. http://waterplan.state.wy.us U.S. Fish & Wildlife Service, National Wetlands Inventory 1997 vector digital data The date of the completion of each NWI quadrangle may vary from quadrangle to quadrangle. Completion dates range from 1974 to 1994. http://www.sdvc.uwyo.edu/24k/nwi.html pltnwi Wyoming Geographic Information Science Center - Original digital National Wetland Inventory quadrangles converted into Arc/Info coverages with matching attributes. The data provide consultants, planners, and resource managers with information on wetland location and type. The data were collected to meet U.S. Fish & Wildlife Service's mandate to map the wetland and deepwater habitats of the United States. Wetlands are lands transitional between terrestrial and aquatic systems where the water table is usually at or near the surface or the land is covered by shallow water. For purposes of this classification wetlands must have one or more of the following three attributes: 1) at least periodically, the land supports predominantly hydrophytes; 2) the substrate is predominantly undrained hydric soil; and 3) the substrate is non-soil and is saturated with water or covered by shallow water at some time during the growing season of each year. This dataset is the National Wetlands Inventory data obtained from the Wyoming Geographic Information Science Center. The dataset's extent, coordinate system, and data format were altered. The dataset was clipped to the extents of the North and South Platte 4th level hydrologic unit code watershed boundaries. The coordinate system was changed to Lat/Long NAD 1927 and the data format was converted from an ESRI coverage to an ESRI shapefile. These data alterations occurred in the Winter of 2003 for use in the Wyoming Water Development Commission's Platte River Basin Plan. en 19710201 19921201 source photography date Complete Irregular -109.199896 -104.051795 43.199308 40.999972 -109.199896-104.05179540.99997243.199308 None wetlands palustrine lacustrine riverine marshes National Wetlands Inventory None Wyoming none Federal, State, and local regulatory agencies with jurisdiction over wetlands may define and describe wetlands in a different manner than that used in this inventory. There is no attempt, in either the design or products of this inventory, to define the limits of proprietary jurisdiction of any Federal, State, or local government or to establish the geographical scope of the regulatory programs of government agencies. Persons intending to engage in activities involving modifications within or adjacent to wetland areas should seek the advice of appropriate Federal, State, or local agencies concerning specified agency regulatory programs and proprietary jurisdictions that may affect such activities. Wyoming Water Resources Data System (WRDS) Coordinator mailing address

P.O. Box 3943

Laramie Wyoming 82071 USA 307-766-6651 307-766-3785 wrds@uwyo.edu Monday through Friday, 8 a.m. to 5 p.m., Mountain Standard Time U.S. Fish and Wildlife Service Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800 Shapefile Attribute accuracy is tested by manual comparison of the source with hard copy printouts and/or symbolized display of the digital wetlands data on an interactive computer graphic system. In addition, WAMS software (USFWS-NWI) tests the attributes against a master set of valid wetland attributes. Polygons intersecting the neatline are closed along the border. Segments making up the outer and inner boundaries of a polygon tie end-to-end to completely enclose the area. Line segments are a set of sequentially numbered coordinate pairs. No duplicate features exist nor duplicate points in a data string. Intersecting lines are separated into individual line segments at the point of intersection. Point data are represented by two sets of coordinate pairs, each with the same coordinate values. All nodes are represented by a single coordinate pair which indicates the beginning or end of a line segment. The neatline is generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data crossing the neatline are clipped to the neatline and data within a specified tolerance of the neatline are snapped to the neatline. Tests for logical consistency are performed by WAMS verification software (USFWS-NWI). All photo-interpretable wetlands are mapped. In the treeless prairies, 1/4 acre wetlands are mapped. In forested areas, small open water and emergent wetlands are mapped. In general, the minimum mapping unit is from 1 to 3 acres depending on the wetland type and the scale and emulsion of the source aerial photography. In regions of the country where evergreen forested wetlands predominate, wetlands smaller than 3 acres may not be mapped. Thus, a detailed on the ground and historical analysis of a single site may result in a revision of the wetland boundaries established through photographic interpretation. In addition, some small wetlands and those obscured by dense forest cover may not be included in this dataset. not available at this time Domain includes the U.S. Geological Survey (USGS), U.S. Department of Agriculture (USDA), National Aeronautics and Space Administration (NASA), special project. Information for this element varies for each 7.5' quad. 1992 62000 stable based material 1971 1992 photo date NWI1 Wetlands spatial and attribute information. Source scales range from 1:20,000 to 1:132,000. U.S. Geological Survey 1992 map Reston,VA U.S. Geological Survey stable-base material 1902 1992 publication date NWI2 Base cartographic data. Scale domain includes 20000, 24000, 25000, 30000, and 62500. U.S. Fish & Wildlife Service, National Wetlands Inventory 1994 map St.Petersburg,Florida U.S. Fish & Wildlife Service, National Wetlands Inventory stable-base material 1979 1994 publication date NWI3 wetlands location and classification. Scale domain includes 20,000, 24000. 25000, 30000, and 62500. NWI maps are compiled through manual photointerpretation of NHAP or NAPP aerial photography supplemented by Soil Surveys and field checking of wetland photo signatures. Delineated wetland boundaries are manually transferred from interpreted photos to USGS 7.5 minute topographic quadrangle maps and then manually labelled. Quality control steps occur throughout the photointerpretation, map compilation, and map reproduction processes. NWI1 NWI2 1994 NWI3 Digital line graph files of NWI were converted into Arc/Info format, tiled into 1:100,000-scale quadrangles for distribution, and attributes standardized and checked. 1997 This dataset is the National Wetlands Inventory data obtained from the Wyoming Geographic Information Science Center. The dataset's extent, coordinate system, and data format were altered. The dataset was clipped to the extents of the North and South Platte 4th level hydrologic unit code watershed boundaries. The coordinate system was changed to Lat/Long NAD 1927, and the data format was converted from an ESRI coverage to an ESRI shapefile. These data alterations occurred in the Winter of 2003 for use in the Wyoming Water Development Commission's Platte River Basin Plan. Trihydro Corporation GIS Department mailing and physical address

1252 Commerce Drive

Laramie Wyoming 82070 USA 307-745-7474 307-745-7729 gis@Trihydro.com Monday through Friday, 8 a.m. to 5 p.m., Mountain Standard Time Vector G-polygon 58382 SimplePolygonFALSE58382FALSEFALSE 0.000000 0.000000 Decimal degrees North American Datum of 1927 Clarke 1866 6378206.400000 294.978698 GCS_Assumed_Geographic_1 pltnwi see citationCowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish Wildlife Service. 103 pp. Feature Class58382 FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. FIDOID400 Shape Feature geometry. ESRI Coordinates defining the features. ShapeGeometry000 TYPE TYPEString5 SYSTEM_SUB SYSTEM_SUBString3 CLASS CLASSString2 W_REGIME W_REGIMEString1 SPECIAL SPECIALString1 NWI_CODE NWI_CODEString22 CODE CODEString5 Wetlands are lands transitional between terrestrial and aquatic systems where the water table is usually at or near the surface or the land is covered by shallow water. For purposes of this classification wetlands must have one or more of the following three attributes: 1) at least periodically, the land supports predominantly hydrophytes; 2) the substrate is predominantly undrained hydric soil; and 3) the substrate is non-soil and is saturated with water or covered by shallow water at some time during the growing season of each year. NWI_CODE is the parent attribute, and its characters have been subdivided into other attributes for ease of selection. Two *.dbf files are included with the NWI data, type.dbf and class.dbf. The field in type.dbf SYSTEM_SUB describes the codes for the wetlands subsystem (ie riverine, lacustrine, palustrine, or upland). The field in class.dbf, CLASS, describes the codes for the wetlands class, (eg rock bottom, aquatic bed, emergent). The wetland classification system is hierarchical, with wetlands and deepwater habitats divided among five major systems at the broadest level. The five systems include Marine (open ocean and associated coastline), Estuarine (salt marshes and brackish tidal water), Riverine (rivers, creeks, and streams), Lacustrine (lakes and deep ponds), and Palustrine (shallow ponds, marshes, swamps, sloughs). Systems are further subdivided into subsystems which reflect hydrologic conditions. Below the subsystem is the class which describes the appearance of the wetland in terms of vegetation or substrate. Each class is further subdivided into subclasses; vegetated subclasses are described in terms of life form and substrate subclasses in terms of composition. The classification system also includes modifiers to describe hydrology (water regime), soils, water chemistry (pH, salinity), and special modifiers relating to man's activities (e.g., impounded, partly drained). Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish Wildlife Service. 103 pp. Wyoming Water Resources Data System (WRDS) Coordinator mailing address

P.O. Box 3943

Laramie Wyoming 82071 USA 307-766-6651 307-766-3785 wrds@uwyo.edu Monday through Friday, 8 a.m. to 5 p.m., Mountain Standard Time National Wetlands Inventory (NWI) Data within the Platte River Basin Planning Area. These data were generated for use in conjunction with the Platte River Basin Plan. The Wyoming Water Development Commission (WWDC) and the Water Resources Data System (WRDS) do not warrant, endorse, or recommend the use of these data for any other purpose. The user assumes the entire risk related to the use of these data. WWDC and WRDS are providing these data "as is," and WWDC and WRDS disclaims any and all warranties, whether expressed or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose. It is strongly recommended that this data is directly acquired from the distributor described above or from the National Wetlands Inventory, http://www.nwi.fws.gov, and not through other sources which may have changed the data. This data was developed and is meant to be used at the 1:24,000-scale (or smaller scale) for the purpose of identifying wetlands (by federal NWI definitions) in Wyoming and the distributor makes no claims for the data's suitability for other purposes. ArcView Shapefile (SHP) no compression applied 52.430 71.431 http://waterplan.state.wy.us CD-ROM ESRI Shapefile (SHP) No fees are required for downloading the data that is on-line. Minimal fees may be required to cover the costs of a CD-ROM. 20031217 Trihydro Corporation REQUIRED: The person responsible for the metadata information. GIS Department mailing address

1252 Commerce Drive

Laramie Wyoming 82070 USA 307-745-7474 307-745-7729 gis@Trihydro.com Monday through Friday, 8 a.m. to 5 p.m., Mountain Standard Time FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile enhttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile {9882E160-BC57-4F6C-9CF2-715F672B5172}2003120821350500FALSE20031217094012002003121709401200Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800pltnwi-109.199896-104.05179543.19930840.9999721-109.199896-104.05179543.19930840.9999721ISO 19115 Geographic Information - MetadataDIS_ESRI1.0dataset002file://\\dc1\home\Projects\WWDC\Platte-Waterplan\GIS\Final_Themes\PLTNWI\pltnwi.shpLocal Area Network71.431ShapefileGCS_Assumed_Geographic_15838220031217