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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee.
WaterBodyMLNF represents lakes, ponds and reservoirs on the Manti-La Sal National Forest and vicinity. These data were subset from the National Hydrography Dataset (NHD), which is the surface water component of The National Map. The NHD is a digital vector dataset used by geographic information systems (GIS). It contains features such as lakes, ponds, streams, rivers, canals, dams and streamgages. These data are designed to be used in general mapping and in the analysis of surface-water systems.
A ranger district is generally the smallest defined management unit on a national forest. A single ranger district may manage lands on multiple national forests.
A ranger district is generally the smallest defined management unit on a national forest. A single ranger district may manage lands on multiple national forests.
A ranger district is generally the smallest defined management unit on a national forest. A single ranger district may manage lands on multiple national forests.
Existing Vegetation (EV) is the plant community, or floristic composition and vegetation structure, occurring at a given location at the current time. This layer also provides for Land Use and Land Cover attributes as well, so as to allow the mapping of a continuous landscape, using Anderson 1 and 2 classification systems. The Field Sampled Vegetation (FSVeg) database contains plot vegetation data from field surveys such as FIA data, stand exams, inventories, and regeneration surveys. It includes data on trees, surface cover, understory vegetation, and down woody material. Almost any type or variety of field sampled vegetation data can be stored in FSVeg.