1. Depth to the water table (1976-1977) in the greater Denver area, Front Range Urban Corridor, Colorado [cartographic material] Yale Public content 1983. 2013-05-30T20:18:57Z. 2013-06-14T17:58:37Z. Hillier, Donald E. Dept. of the Interior, U.S. Geological Survey. English. Public. Colorado, Denver Metropolitan Area, and Denver Metropolitan Area (Colo.).