Jerry,
Thanks for finding and posting that picture. In pre-1968 D&RGW days, my family would regularly drive by that site and I remember seeing stock cars on the siding, though I don't remember how many. When I was volunteering on the C&TS in the early days, a friend and I went out to Azotea and walked over to the stock car. I am guessing it was the summer of 1971 or 1972. I only remember the one stock car (5636) on its side, the scrappers having just gone through. I don't remember any burned remains of other cars, though they might have been there. Unfortunately, I saw all too many burned cars in those days as freight cars were burned for their scrap metal.