a - vegetation in the Last Chance range; b - explosives bunker at Last Chance Spring; c - CA/NV state line sign; d - Jan Vleck DS69 reads a map - perhaps Telescope Peak in the distance; e - mountain face in the Last Chance range - perhaps Cucamonga…
a - John Mawby DS53 - paleontologist and DS faculty member - foreground - and unidentified person start excavation; b - Mawby continues excavation; c - later stage in excavation of skull
a - possibly Andy Fairchild DS67 - or Tom Tompkins DS69 - pulling baler with Case tractor; b - unidentified students picking up bales with IHC truck; c - Nonie Holloway cutting hay with swather - Spring 1971
a - possibly Bill Sullivan DS70 riding a cow; b - possibly Bruce Proctor DS70 riding a cow; c - possibly Bruce Proctor riding a cow - Nonie Holloway at left - Mike Quinn DS70 and Bill Sullivan DS70 in background
a - probably Merritt Holloway roping a calf; b - Robin Hayes roping a calf; c - Bill Sullivan DS70 (back to camera) - possibly John Sender DS69 (on ground) - Robin Hayes - and unidentified person wrestle a calf; d - more likely from 1970 - Mike…