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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 505 records · Page 28Linked to original sources
USGS1904

Cottonwood Falls folio, Kansas

The Cottonwood Falls quadrangle lies between parallels 38° and 38° 30' and meridians 96° 30' and 97°, and therefore constitutes a quarter of a square degree of the earth's surface. It is 34.35 miles long and 26.75 miles wide, and contains about 938 square miles. It is located east and a little south of the central part of Kansas, on Cottonwood River, and includes large portions of Chase and Marion counties and small portions of Greenwood and Butler counties.

Kansas↗
USGS1904

Globe folio, Arizona

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Folios of the Geologic Atlas↗
USGS1904

Bisbee folio, Arizona

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Folios of the Geologic Atlas↗
USGS1905

Silverton folio, Colorado

The term San Juan region, or simply "the San Juan," used with variable meaning by early explorers, and naturally with indefinite limitation during the period of settlement, is now quite generally applied to a large tract of mountainous country in southwestern Colorado, together with an undefined zone of lower country bordering it on the north, west, and south. The Continental Divide traverses this area in a great bow. The principal part of the district is a deeply scored volcanic plateau, more than 3000 square miles in extent, drained on the north by the tributaties of the Gunnison River, on the west by those of the Dolores and San Miguel rivers, on the south by numerous branches of the San Juan, and on the east by the Rio Grande. ALl but the latter drainage finds its way to the Gulf of California through the Colorado River.

Colorado↗