GRSM 100K TOPO BOUNDARIES

This layer presents the geographic extent of USGS 1:100,000 topographic maps (30- by 60-minute quadrangles) for the conterminous U.S. forty-eight states and District of Columbia. It provides quadrangle name, identification number, publication data, and map coverage by state for each quadrangle. This medium-scale index grid can be a handy visual reference for regional displays. These data are a subset of a larger dataset published by the organization listed in the credits. Great Smoky Mountains National Park makes these data available in this form such that users can: effectively manipulate data for park mapping activities that do not require the acquisition of a large, nation-wide data set; alter symbology and rendering parameters natively; restrict analysis of geospatial data to an extent that coincides with the park footprint. The corresponding Integration of Resource Management Applications (IRMA) NPS Data Store reference is Great Smoky Mountains National Park 1:100,000-scale Topographic Map Boundaries.