Front Range Research Associates, Inc. for the Colorado Department of Transportation No description specified. 1-3 (3 Records) Documents Colorado Department of Transportation Project: U. S. 285 & State Colorado 17. (NH 0402-54) (1999) Historic Resources Survey County Line Road Araphoe and Douglas Counties, Co. (1997) Historic Resources Survey Interstate 25 / U. S. Highway 85 Douglas County, Co. (Cdot Im 0252-317) (1999)