Administrative boundaries: Data completeness generally reflects the content of the original source graphic. Selective updating of the maps was done prior to digitizing. The Administrative Boundaries category of data includes federally administered forests, parks, and wildlife refuges.
For Hydrography category: Streams: Data completeness generally reflects the content of the original source graphic. Selective updating of the maps was done prior to digitizing. The Hydrography category includes perennial and intermittent streams and canals. Water Bodies: Data completeness generally reflects the content of the original source graphic. Selective updating of the maps was done prior to digitizing. Water bodies include perennial, intermittent and dry lakes, swamps and glaciers.
Hypsography: Data completeness generally reflects the content of the original source graphic. Selective updating of the maps was done prior to digitizing. Hypsography data is limited to the Continental Divide.
For Transportation category: Roads and Trails: Data completeness generally reflects the content of the original source graphic. Selective updating of the maps was done prior to digitizing. The Roads and Trails category includes Interstate and primary State highways. Railroads: Data completeness generally reflects the content of the original source graphic. Selective updating of the maps was done prior to digitizing. The railroads category of data includes main line and branch line railroads. Cultural Features: Data completeness generally reflects the content of the original source graphic. Selective updating of the maps was done prior to digitizing. The Cultural Features are limited to airports and the Alaska pipeline.