Fielding Bradford Meek

Missouri. Bureau of Geology and Mines

Garland Carr Broadhead

Benjamin Franklin Shumard

1855-1871

Reports on the Geological Survey of the State of Missouri

United States. Army. Corps of Engineers

John Strong Newberry

John N. Macomb

One of the last Army expeditions in the region, this was an exploration of parts of New Mexico, Utah, and Colorado during the summer of 1859, northward out of Santa Fe along the Old Spanish Trail, to discover if there were a practical railroad or wagon route through the San Juan River country to the southern settlements of Utah Territory (in case of further armed conflicts like the "Utah War"), and on to the west coast. The report found the mountainous terrain impractical for a railroad, and the weather too severe for permanent settlement. The Civil War delayed publication.

From Santa Fé, New Mexico, to the Junction of the Grand and Green Rivers of the Great Colorado of the West, in 1859

Report of the Exploring Expedition

Geological and Geographical Survey of the Territories (U.S.)

Ferdinand Vandeveer Hayden

Samuel Hubbard Scudder

Made Under the Direction of the Commissioner of the General Land Office

Final Report of the United States Geological Survey of Nebraska and Portions of the Adjacent Territories

Fielding Bradford Meek

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