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The digital ARC/INFO databases included in this directory provide a geologic map GIS database of the Absaroka-Beartooth study area (ABSA), a tract of approximately 1.4 million acres of National Forest land in southwestern Montana. The ABSA is adjacent to the northern part of Yellowstone National Park, and includes southeastern parts of Gallatin National Forest and western parts of the Custer National Forest. The geologic map was originally prepared to accompany a U.S. Geological Survey evaluation of the mineral resource potential within the ABSA. The results of this mineral resource assessment were published as U.S. Geological Survey Open-File Report 93-207 and the geologic map was plate 1 of this report. The enclosed...
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The geology of western and northern Gallatin National Forest was mapped in two parts as part of an evaluation of its mineral resource potential by the USGS. Previously, the western part was released as Map A and the northern part as Map B of USGS Geologic Investigations Series Map I-2584. These maps were compiled, digitized, and produced using the USGS software program GSMAP. All the original source maps were simplified on mylar overlays, digitized at their original map scales and projections, and then merged into the final maps. After editing, the digital maps were filtered to remove all points not necessary for improving resolution at a scale of 1:126,720 (2 mi per in., the scale used by the USDA Forest Service)....
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The geology of western and northern Gallatin National Forest was mapped in two parts as part of an evaluation of its mineral resource potential by the USGS. Previously, the western part was released as Map A and the northern part as Map B of USGS Geologic Investigations Series Map I-2584. These maps were compiled, digitized, and produced using the USGS software program GSMAP. All the original source maps were simplified on mylar overlays, digitized at their original map scales and projections, and then merged into the final maps. After editing, the digital maps were filtered to remove all points not necessary for improving resolution at a scale of 1:126,720 (2 mi per in., the scale used by the USDA Forest Service)....


    map background search result map search result map Geologic map datasets of the Custer and Gallatin National Forestsof South-central Montana, in ARC/INFO format: Absaroka-Beartooth study area Geologic map datasets of the Custer and Gallatin National Forestsof South-central Montana, in ARC/INFO format: Northern portion Geologic map datasets of the Custer and Gallatin National Forestsof South-central Montana, in ARC/INFO format: Western portion Geologic map datasets of the Custer and Gallatin National Forestsof South-central Montana, in ARC/INFO format: Northern portion Geologic map datasets of the Custer and Gallatin National Forestsof South-central Montana, in ARC/INFO format: Western portion Geologic map datasets of the Custer and Gallatin National Forestsof South-central Montana, in ARC/INFO format: Absaroka-Beartooth study area