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The Pacific Railroad Surveys (1853–1855) were a series of explorations of the American West designed to find and document possible routes for a transcontinental railroad across North America. The expeditions included surveyors, scientists, and artists and resulted in an immense body of data covering at least 400,000 square miles (1,000,000 km ...
The expedition lasted for nine months and traveled 1,800 miles (2,900 km). [1] The expedition was one of several surveys approved in 1853-4, when funding was added to the War Department budget. This allowed Secretary of War Jefferson Davis to send out surveying expeditions to explore potential transcontinental railroad routes across the United ...
Pacific Railroad Surveys, which consisted of five surveys to find potential transcontinental railroad routes. These survey reports were compiled into twelve volumes, Reports of Explorations and Surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean, made under the direction ...
In 1841, Cadwalader Ringgold, an officer in the United States Navy, spent twenty days surveying the San Francisco Bay watershed as a member of the United States Exploring Expedition In 1849, Cadwalader Ringgold began a more comprehensive survey the San Francisco Bay region, [11] the Sacramento River, and parts of the American and created several maps which included depth sounding information ...
Pruess Lake, Snake Valley, Utah George Karl Ludwig Preuss (1803–1854), anglicized as Charles Preuss, was a surveyor and cartographer who accompanied John C. Fremont on three of his five exploratory expeditions of the American west, including the expedition where he and Fremont were the first to record seeing Lake Tahoe from a mountaintop vantage point as they traversed what is now Carson ...
In 1856, a Railroad Survey Expedition modified the Tucson Cutoff route, passing south of Nugent's Pass using Dragoon Pass and the Middle Crossing or San Pedro Crossing of the river instead of the Lower Crossing below Los Alamos. [8]
After the Mexican-American War, Beckwith was appointed to explore the new territory that was annexed to the United States. In 1853, during the Gunnison-Beckwith Expedition, Beckwith was assistant commander to John Williams Gunnison. The purpose of that expedition was to survey another railroad route in the Rocky Mountains. [1]
It would have been established after Robert S. Williamson's 1853-4 report of his expedition for the Pacific Railroad Surveys, which does not mention it, and before the 1857 production of Britton and Rey's Map of California, which does.