Wilson, Michael C.

Bison bone cluster, Unit 26, Zone II

Bison bone cluster, Unit 26, Zone II

Excavating bison bones, Zone II

Excavating bison bones, Zone II, unit 26

Excavating bison bones, Zone II, unit 26

Excavating bison bones, Zone II, unit 26

Excavating bison thoracic vertebra

Excavating unit 27, Zone II, August 1991

Excavating unit 27, Zone II, August 1991

Excavating units 27, 28, Zone II, August 1991