Spurr. Tourtelotte Park Mining District Sheet. 1898.

Josiah Edward Spurr (1870–1950)
Tourtelotte Park Mining District Sheet
From Atlas to Accompany Monograph XXXI on the Geology of the Aspen District, Colorado, Washington, 1898
Lithograph
Sheet size: 18 1/2 x 21 inches

This detailed sheet from the Atlas to Accompany Monograph XXXI on the Geology of the Aspen District, Colorado presents the geological survey of the Tourtelotte Park Mining District. Authored by Josiah Edward Spurr under the direction of the United States Geological Survey (USGS), this work exemplifies the meticulous mapping efforts undertaken during the late 19th century to document Colorado’s rich mineral deposits. The atlas, overseen by geologist Samuel Franklin Emmons, captures the topography and stratigraphy of the Aspen region at the height of its silver boom. The sheet provides critical insight into the area's geological formations, fault lines, and mineral resources, reflecting the USGS’s broader mission to support mining and land development. A significant historical document, it remains an essential reference for geologists and collectors of early American mining cartography.