1. Map of pioneer trails, stage stops, and areas with a view in the Parker quadrangle, Arapahoe and Douglas Counties, Colorado [cartographic material] Yale Public content 1973. 2013-02-21T20:15:09Z. 2013-03-18T22:37:26Z. Maberry, John O., 1935-. U.S. Geological Survey. English. Public. Colorado, Arapahoe County, Douglas County, Arapahoe County (Colo.), and Douglas County (Colo.).