I was thinking the same thing Mut, but I've never been in the Black, just below Chukar thru Gunny Gorge. No tracks, no old railroad grade (which you can see in the other photos, RL in first two, RR in third) down there either.
Were there even color photos in 1944? I wasn't even close to around, but it seems that shit came later than the 40's.
What's the scoop yeti? Where's your source, man. Don't make us go all Dan Rather on you...