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Results for “Monograph”

Search indexed USGS publications on groundwater, aquifers, geologic maps, mineral resources and earthquakes. Explore source records by subject and place.

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At least 307 records · Page 17Linked to original sources
USGS1882

Geology of the Comstock lode and the Washoe district, with atlas

The field work for this report was begun in April, 1880, and concluded in March, 1881. In the spring of 1880 the Census of the Mineral Industries West of the Rocky Mountains was placed in my charge in addition to my duties as geologist, and occupied much of my time both during the period of field work in the Washoe District and since.

Nevada↗
USGS1898

Fossil Medusa

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Monograph↗
USGS1898

Geology of the Aspen mining district, Colorado, with atlas

Field work in the Aspen district was begun by the writer and Mr. Tower about July 1, 1898, and continued to about December 1 of the same year. The summer months were chiefly spent in the study of the surface, while the fall and early winter were devoted to the investigations of underground phenomena, as shown in mine workings.

Colorado↗