First edition of this detailed large format map of the United States, illustrating the extent of the public surveys conducted by the General Land Office through 1866.
The map shows the state of the evolving Western Territorial Boundaries in the year after the Civil War. The most notable feature is the unusual configuration of Dakota Territory, pre-dating the creating of Wyoming Territory.
The most noteworthy feature is the extensive mineralogical detail in the map, noting the presence of Gold, Silver, Copper, Quicksilver, Iron, Tin, Asphaltum, Coal and Oil, in the mineral rich regions west of the Rocky Mountains.
Beginning in 1866, the General Land Office began issuing this remarkable large format map of the United States, full of the most up to date information from surveys being conducted throughout the Western States, including the extent of the public surveys, locations of US Surveyor and Land Offices, the location of Land Grants in the West, Railroads and Proposed Railroads, Land Districts, and the mineral deposits known at the end of the Civil War. With the Civil War at its conclusion and the Transcontinental Railroad construction in high gear, it was time for America to compile a visual depiction which tracked the progress of the survey, settlement and commercial development of the lands west of the Mississippi, in a single map.
Between 1866 and 1870, under the auspices of the General Land Office, a series of maps was produced to accompany the annual reports of the Commissioner of the General Land Office. Initially, the maps were also widely distributed outside the United States, with copies issued as separate maps, bound in covers which translated the title into French, German and other languages, providing notice to the world that the United States was exercising dominion over all its lands from coast to coast and was a ripe place for investment and immigration.