Bison skull specimen EPV.60678 in situ, L- R Russ Graham Penn State Mammoth expert, unknown person with excavation equipment in background. This may be the only excavation where construction workers worked side by side with museum volunteers to remove the largest number of fossils in a short amount of time. Bulldozer drives deftly removed tons of top burden while experienced volunteers sifted through the dirt. Some drivers distinguish when the blade hit rock, bone, or wood by the way "it felt".
date of photograph
USA, Colorado, Pitkin County, Snowmass Village, Ziegler Reservoir
Canon EOS D5
use with permission Denver Museum of Nature & Science