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Mines and prospects, Idaho Springs district, Clear Creek and Gilpin counties, Colorado -- Descriptions and maps
Robert Hadley Moench, Avery Drake Jr.
1966, Open-File Report 66-87
The Idaho Springs mining district forms an important segment of the Front Range mineral belt, a northeast-trending zone of coextensive intrusive rocks and hydrothermal ore deposits of early Tertiary age. This belt, which is about 50 miles long, extends from the region just west of Boulder southwestward across the Front...
Magnitude and frequency of floods in the United States: Part 10. The Great Basin
E. Butler, J.K. Reid, V.K. Berwick
1966, Water Supply Paper 1684
The probable magnitude of floods of any recurrence interval between 1.1 and 50 years for any stream in the Great Basin can be determined by methods presented in this report.The Great Basin comprises nearly all of Nevada, western Utah, eastern California, and parts of Idaho, Oregon, and Wyoming. The physiography...