I looked at a link to your photos, and I saw the photos made in Colorado.
This is a picture I took of Sheep Mountain, which I think might be the same Sheep Moutain shown in your album.
This picture was made in 1965, but I believe on the opposite side from where your picture was taken. The lakes look familiar, and two friends and I fished the beaver ponds in the area near the mountain.
The Sheep Mountain I am talking about is near two small towns named Burns, and also Dotsero. At the time, to reach the lakes and ponds was about a 20 mile drive with 4WD, equipped with a winch.
If this is the same place, I just thought you might be interested in hearing from someone who visited the area 46 years ago.