Jack G. Raub Company, Englewood, Co No description specified. 1-3 (3 Records) Documents Archaeological Investigations of Sites 5Da438, 5Da450 and 5Da451 (1987) Archaeological Investigations of Sites 5Da438, 5Da450 and 5Da451, Highlands Ranch, Douglas County, Colorado (1986) Preliminary Geoarcheological Investigations at Sites 5Da450 and 5Da451, Big Dry Creek (1987)