Economic geology of the Idaho Springs district, Clear Creek and Gilpin Counties, Colorado
Robert Hadley Moench and Avery Ala Drake Jr.
Additional Publication Details
- Publication type:
- Publication Subtype:
- USGS Numbered Series
- Economic geology of the Idaho Springs district, Clear Creek and Gilpin Counties, Colorado
- Series title:
- Series number:
- Year Published:
- U.S. Govt. Print. Off.,
- 91 p. illus., maps (part col.) ;24 cm.