Serial/Series Title
7.5 Minute Series (Topographic)
21
15 Minute Series (Topographic)
14
United States Bureau of Mines Reports
11
Report of investigations (United States. Bureau of Mines)
9
Western United States 1:250,000
9
Digital Raster Graphic Topographic Maps: 7.5 Minute Series (Topographic)
7
United States Geological Survey Reports
7
Petroleum-Engineering Studies
5
Trace elements investigations report
5
30 Minute Series
2
8 More