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Geologic map datasets of the Custer and Gallatin National Forestsof South-central Montana, in ARC/INFO format: Western portion


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2013-05-16 14:08:07


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). For purposes of [...]


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This dataset was developed to provide a geologic map GIS database of the western parts (Map A) of the Gallatin National Forest for use in spatial analysis by a variety of users.




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Added to Sciencebase on Sat Nov 16 14:12:59 MST 2013 by processing URL <b>western.xml</b> in item <a href=""></a> <br />

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