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Reports

Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 83829

Relation of the Cretaceous formations to the Rocky Mountains in Colorado and New Mexico

Some time ago, while working on a problem that involved the question of the presence or absence of islands near the close of the Cretaceous period in the region now occupied by the southern part of the Rocky Mountains, I was forced to the conclusion that no land masses or islands of any considerable size persisted there throughout the Cretaceous period, for I found no sedimentary rocks that were c
Authors
Willis T. Lee

Shorter contributions to general geology, 1915

No abstract available.
Authors

Silver City folio, New Mexico

No abstract available.
Authors
Sidney Paige

Spirit leveling in Arkansas, 1896 to 1915, inclusive

No abstract available.
Authors
Robert Bradford Marshall

Spirit leveling in Georgia, 1896 to 1914, inclusive

No abstract available.
Authors
Robert Bradford Marshall

Spirit leveling in Louisiana, 1903 to 1915, inclusive

No abstract available.
Authors
Robert Bradford Marshall

Spirit leveling in Maine, 1899-1915

No abstract available.
Authors
Robert Bradford Marshall

Spirit leveling in Mississippi, 1901 to 1915, inclusive

No abstract available.
Authors
Robert Bradford Marshall

Spirit leveling in New Mexico 1902 to 1915, inclusive

No abstract available.
Authors
Robert Bradford Marshall

Spirit leveling in North Carolina, 1896 to 1914, inclusive

No abstract available.
Authors
Robert Bradford Marshall

Spirit leveling in South Dakota 1896 to 1915, inclusive

No abstract available.
Authors
Robert Bradford Marshall

Spirit leveling in Texas 1896 to 1915, inclusive

No abstract available.
Authors
Robert Bradford Marshall