Glen Canyon Dam A dam in Glen Canyon was studied as early as 1924, but these plans were initially dropped in favor of the Hoover Dam (completed in 1936) which was located in the Black Canyon. By the 1950s, due to rapid population growth in the seven U.S. and two Mexican states comprising the Colorado River Basin, the Bureau of Reclamation deemed the construction of additional reservoirs necessary. However, the USBR faced opposition when it proposed the Echo Park Dam in Utah's Dinosaur National Monument, which the nascent environmental movement saw as a legal threat to the status of protected lands. After a
Colorado City, Nevada Nevada. In 1866, Colorado City became the site of two stamp mills, located there for ease of supplying wood to operate its steam driven mechanism. One was the old Colorado Mill brought down the canyon from El Dorado City, and refurbished. The other was the new New Era Mill. The site of Colorado City, and the Colorado River it was adjacent to, was submerged under Lake Mohave following the construction of the Davis Dam in 1951. What remains of Colorado City lies offshore from the site of Nelson's Landing. Colorado City, Nevada Colorado City is now a ghost town, in