In 1849, Stansbury was ordered to travel from Fort Leavenworth, Kansas, to survey the Great Salt Lake in Utah, evaluate emigration trails, especially in Oregon and Mormon trails, and to scout for possible locations for a transcontinental railroad. The expedition consisted of 18 men including his second in command Lieutenant John Williams Gunnison. Over the few years to follow the expedition covered the Great Salt Lake, Utah Lake and Cache Valley of northern Utah all the way to Fort Hall in Southern Idaho. Stansbury’s seminal 1852 map of the Great Salt lake region in Utah is considered to be the first accurate survey of the Great Basin as well as a cornerstone achievement in the mapping of the American West.

Measurements:

Map of the Great Salt Lake and Adjacent Country in the Territory of Utah: 43'' x 29.75''

Map of Reconnaissance between Fort Leavenworth on Missouri River, and the Great Salt Lake in the Territory of Utah: 28.75'' x 66.5''

Condition: These maps are both in good condition with some minor wear and tear and age toning.