GIS Data
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Filter Total Items: 9493
Geology and zinc-lead deposits in the Durango area, Dubuque County, Iowa
Geologic investigations were begun in Iowa to appraise; (1) the possible occurrence of zinc ore in strata that elsewhere in the Upper Mississippi Valley zinc-lead district have been the principal sites of zinc concentration; and (2) lead ore of the type known as "crevice deposits," which were mined so extensively during the 19th century in Dubuque County, Iowa, but have been mined very little sinc
Geology of anthracite in the eastern part of the Shenandoah quadrangle, Pennsylvania
No abstract available.
Geology of anthracite in the western part of the Delano quadrangle, Pennsylvania
No abstract available.
Geology of anthracite in the western part of the Shenandoah quadrangle, Pennsylvania
No abstract available.
Geology of the Marys Peak and Alsea quadrangles, Oregon
No abstract available.
Geology of the northern part of the Girard coal field, Richland County, Montana
No abstract available.
Geology of the Sheridan and McMinnville quadrangles, Oregon
No abstract available.
Geology of the Shotgun Butte area, Fremont County, Wyoming
No abstract available.
Hamm Canyon quadrangle, Colorado
No abstract available.
Map of New Mexico showing test wells for oil and gas, oil and gas fields, and pipelines
No abstract available.