View of South Lake in Washington Park, Denver, Colorado; trees and reeds jut into lake at left; at center, a small island is tree- covered; reeds in foreground.
View of South Lake in Washington Park, Denver, Colorado; trees and reeds jut into lake at center; at left background, figures play on shore, with dwellings visible in distance.
View of Spruce Tree House, Native American (Anasazi) cliff dwellings, Mesa Verde National Park, Montezuma County, Colorado. Window holes are visible throughout the cliff dwelling's walls. A wooden ladder leans against one of the walls, leading to...
Indians of North America--Antiquities & archaeological sites--1900-1910.; Pueblo Indians--Antiquities & archaeological sites--Colorado--1900-1910.; Mesa Verde National Park (Colo.)--1900-1910.; Spruce Tree House (Colo.)--1900-1910.; Archaeological...
Blackhawk lies at the mouth of Chase Gulch near Central City in Gilpin County, Colorado. A railroad track forks in the foreground with one portion leading to the Polar Star Mill at right. The Empire Mill stands in the midground, and the Boiler Room...
133,000 cubic feet of reinforced concrete were reportedly used to build the 624-foot dam, which was about 120 feet thick at the base and about 16 feet at the top. The dam was opened 1910. A ridge of mountains is in the distance.; The branches of a...
Boulder County (Colo.)--1930-1940.; Nederland (Colo.)--1930-1940.; Dams--Colorado--Nederland--1930-1940.; Hydroelectric power--Colorado--Nederland--1930-1940.
cubic feet of reinforced concrete were reportedly used to build the 624-foot dam, which was about 120 feet thick at the base and about 16 feet at the top. The dam was opened 1910. A ridge of mountains is in the distance.; Tall pine trees jut into...
Boulder County (Colo.)--1930-1940.; Nederland (Colo.)--1930-1940.; Dams--Colorado--Nederland--1930-1940.; Hydroelectric power--Colorado--Nederland--1930-1940.