Well you are correct on #2, it is 1971. I just scanned this one and reworked it today. I posted it because I believe this is the Antonito Wye which was part of a recent discussion. I think this was July of 1971 and they were running a morning and afternoon trips. From the guy in the doghouse I am guessing this is between trips and he may be having lunch. I scanned a bunch of 1971, and next month will try to post some since it will be 50 years. We were there in July and September. The first photo at Cresco is not 1971.
Greg