Gunnison Tunnel

Gunnison Tunnel - Credit: Wikimedia Commons

The Gunnison Tunnel is an irrigation tunnel constructed between 1905 and 1909 Includes construction photos. by the U.S. Bureau of Reclamation in Montrose County, Colorado. The tunnel diverts water from the Gunnison River to the arid Uncompahgre Valley around Montrose, Colorado. Read more on Wikipedia

type: NRHP
date from: 1901

Source: en.wikipedia.org