These pictures are from the mid to late 1930's. They were taken by my dad on a bull buying trip to the famous Baca Grant Ranch in the San Luis valley of south central Colorado.
The bulls used there and in these pictures are of the Baca Duke line. They came from lines at the Wyoming Hereford Ranch and were later to be found to carry the dwarf gene. They were considered to be some of the better bulls in Colorado at the time.
The man you see is Col. Alfred Collins who developed the ranch and the cattle. He did a tremendous amount of work putting in irrigations projects amd irrigated hay ground.
The Baca Grant was one of many land grants to individuals by the King of Spain long before the Louisianna Purchase. When the US bought the Lousianna Purchase they agreed to honor these grants. The deed for this ranch I have heard reads "twelve miles square and as high as the heavens and deep as be nice". I believe it was well in excess of 144,000 deeded acres. The eastern boundary goes right to the top of those mountains in the background.
I know that eastern boundary because we hunted bighorn sheep along it for several years near the Crestone Needles.
We still hunt in the shadow of that mountain. Great pics . Thanks