The Bobtail mill, at Black Hawk, Colo.

Black Hawk, Colorado.

In the "Bobtail" mine, Black Hawk canyon, Colorado, U.S.A.

Black Hawk. This place is noted for its quartz mills, distance 40 miles from Denver, elevation 8200 ft.

Black Hawk mining town near Central City.

Black Hawk City, Colorado.

Burro packed for Montezuma.

Burros [burro] packed for Montezuma.

A man and burros at the top of Grey's Peak.

On Grey's Peak trail.

Gray's Peak from the summit of Glacier Mountain.

St. Lawrence Works, Montezuma.

St. Lawrence Works, Montezuma.

Decatur Mountain from Peru Fork.

Argentine Pass.

Summit of Grey's Peak.

Summit of Grey's Peak.

Grey's Peak from Argentine Pass.

Kelso cabin.

Kelso cabin.

Kelso cabin. Gray's Peak.

Keystone Peak from Gray's Peak, Continental Divide, Colorado, U.S.A.

Looking west from Bald Mountain, Colorado, U.S.A.

View of Gray's [Grey's] Peak looking through the Pinery above Huntsville.

Montezuma and Teller Mountain.

Montezuma and Teller Mt.

Grey's Peak. Brown and Sherman Mountains.

Grey's Peak from gorge above Bakerville.

Gold Run (hydraulic mining), Col. Tr.

Gold Run." Hydraulic mining.