61. Colorado : Bonny Reservoir : 1:100,000-scale topographic map ; 30 x 60 minute series (topographic)
2005. 2006-01-13T14:51:05Z. 2006-09-11T20:04:34Z. United States. Bureau of Land Management. U.S. Dept. ot the Interior, Bureau of Land Management ; U.S. Geological Survey. English. Public. Colorado.