Parashant Canyon, Copper Mountain Mine, United States Mineral Monument No. 1
This is on the promontory behind the rock house. "U.S.M.M. No. 1" means "United States Mineral Monument," which the USGS defines as follows:
This is a monumented reference for one or more mineral surveys or for an isolated special survey. The monument is established during surveys of the irregular boundaries of mining claims when no public land corners have been established in the vicinity. When the public land surveys are subsequently extended to the area, the mineral monument is tied to a regular section corner. This type of monument may also be used in any situation where no corner of an existing survey is available to provide a satisfactory con-
nection for an isolated special survey. In most cases a the monument does not fall on a public land line.
From USGS Part 3: Attribute Coding, Standards for Digital Line Graphs (DLG-3)
Parashant Canyon, Copper Mountain Mine, United States Mineral Monument No. 1
This is on the promontory behind the rock house. "U.S.M.M. No. 1" means "United States Mineral Monument," which the USGS defines as follows:
This is a monumented reference for one or more mineral surveys or for an isolated special survey. The monument is established during surveys of the irregular boundaries of mining claims when no public land corners have been established in the vicinity. When the public land surveys are subsequently extended to the area, the mineral monument is tied to a regular section corner. This type of monument may also be used in any situation where no corner of an existing survey is available to provide a satisfactory con-
nection for an isolated special survey. In most cases a the monument does not fall on a public land line.
From USGS Part 3: Attribute Coding, Standards for Digital Line Graphs (DLG-3)