Colo. Rev. Stat. § 30-5-124
Beginning at the intersection of the fourth standard parallel south with the east line of range sixty-eight west; thence north on said range line to its intersection with the northern boundary of the southern half of township sixteen south; thence west on said northern boundary to the southeast corner of section seventeen, township sixteen south, range seventy west; thence north on section lines to the third standard parallel south; thence west on said parallel to its intersection with the crest of the divide on the east side of the drainage areas of the Arkansas River, being a point approximately one-half mile east of the southwest corner of section thirty-five, township fifteen south, range seventy-seven west; thence southerly along said crest, via Cameron Mountain, to a point on said crest divide lying north eighty-four degrees twenty-five minutes east, eighty-eight hundred and ninety-seven feet from a point on the Arkansas River three miles below the mouth of the South Arkansas River; thence westerly on a straight line to said point on the Arkansas River; thence on a straight line bearing south forty-five degrees ten minutes west, to the intersection of said line with the crest of the Sangre de Cristo Range; thence southeasterly along said crest to its intersection with the fourth standard parallel south; thence east on said parallel to the place of beginning. Said public land survey lines are based upon the sixth principal meridian.
C.R.S. § 30-5-124