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IGS - Store-Books & Maps
Browse papers by Erdman:

Site Inspection Report for the Abandoned and Inactive Mines in Idaho on U.S. Forest Service Lands (Region 1), Nez Perce National Forest: Volume III, Section A: Elk City, Orogrande, Buffalo Hump, and Surrounding Areas, Idaho County, Idaho 2003

Site Inspection Report for the Abandoned and Inactive Mines in Idaho on U.S. Forest Service Lands (Region 1), Nez Perce National Forest: Volume III, Section B: Elk City, Orogrande, Buffalo Hump, and Surrounding Areas, Idaho County, Idaho 2003

Site Inspection Report for the Abandoned and Inactive Mines in Idaho on U.S. Forest Service Lands (Region 1), Nez Perce National Forest: Volume III, Section C: Elk City, Orogrande, Buffalo Hump, and Surrounding Areas, Idaho County, Idaho 2003

Site Inspection Report for the Abandoned and Inactive Mines in the Salmon-Challis National Forest: Mackay Area, Custer County, Idaho 2008

Site Inspection Report for the Abandoned and Inactive Mines in the Salmon-Challis National Forest: Northern Lemhi County and Vicinity, Idaho 2007