Grant is located in Park County. A post office was first
established there on May 16, 1871. It served as a supply
camp for many of the early mining areas nearby. Hall Valley
was located just west of Grant and was a particularly rich
area. The cover below is from a prominent mining operation
in the area.
21 September 1875 Grant, Colorado Territory
to Cleveland, Ohio
Advertising corner card of Hall Valley Silver-Lead
Mining and Smelting co.
