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The paper version of the Geologic Map of the eastern part of the Challis National Forest and vicinity, Idaho was compiled by Anna Wilson and Betty Skipp in 1994. The geology was compiled on a 1:250,000 scale topographic base map. TechniGraphic System, Inc. of Fort Collins Colorado digitized this map under contract for N.Shock. G.Green edited and prepared the digital version for publication as a GIS database. The digital geologic map database can be queried in many ways to produce a variety of geologic maps.
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The paper version of The geology of the Challis 1�x2� quadrangle, wascompiled by Fred Fisher, Dave McIntyre and Kate Johnson in 1992. Thegeology was compiled on a 1:250,000 scale topographic base map.TechniGraphic System, Inc. of Fort Collins Colorado digitized this mapunder contract for N.Shock. G.Green edited and prepared the Challisdigital version for publication as a geographic information systemdatabase. The digital geologic map database can be queried in manyways to produce a variety of geologic maps.
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The geology of the Salmon National Forest, Idaho, was compiled frompublished and unpublished sources and new field mapping by Evans, Lund,Tysdal, and Winkler between 1997 and 2001. The geology was compiledonto 1:100,000-scale topographic base maps for input into a geographicinformation system (GIS). The digital geologic map database can bequeried in many ways to produce a variety of geologic maps.
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The paper version of The geology of the Challis 1°x2° quadrangle, was compiled by Fred Fisher, Dave McIntyre and Kate Johnson in 1992. The geology was compiled on a 1:250,000 scale topographic base map. TechniGraphic System, Inc. of Fort Collins Colorado digitized this map under contract for N.Shock. G.Green edited and prepared the Challis digital version for publication as a geographic information system database. The digital geologic map database can be queried in many ways to produce a variety of geologic maps.


    map background search result map search result map Geologic Map of the Challis 1°x2° Quadrangle, Idaho Geologic Map of the Challis 1�x2� Quadrangle, Idaho Geologic Map of the eastern part of the Challis National Forest and vicinity, Idaho Geologic Map of the Salmon National Forest and Vicinity, East-Central Idaho Geologic Map of the Challis 1°x2° Quadrangle, Idaho Geologic Map of the Challis 1�x2� Quadrangle, Idaho Geologic Map of the eastern part of the Challis National Forest and vicinity, Idaho Geologic Map of the Salmon National Forest and Vicinity, East-Central Idaho