Description
BOULDER COUNTY MINING, TUNNELING, MILLING, LAND & TOWN COMPANY, stock certificate #215
Issued September 5, 1877, uncancelled.
Mining property in the Grand Island District, Boulder County, Colorado
Near fine condition.
Situated on Gold Mouontain, Grand Island Mining District, 23 miles from Boulder, Colorado. Located in 1870, patented.
Fissure vein 6 feet wide with a pay streek of 2 to 23 inches of galena in a quartz gangue. Milled from $10 to $100 of silver per ton.
Development in 1883: 700-foot tunnel, 200-foot shaft, 1000 feet of drift work.
[Ref: 1883 Colorado Mining Directory, Corregan & Lingane, Page 46]
COLORADO ARTIFACTUAL
