Alan Cressler:
Negative Hand Print, Hand Print Cave, Helena National Forest, Montana 2
Alan Cressler:
Foothills Abstract Tradition Pictographs, Shelter No. 1, Helena National Forest, Montana 3
Alan Cressler:
Foothills Abstract Tradition Pictographs, Shelter No. 1, Helena National Forest, Montana 2
Alan Cressler:
Foothills Abstract Tradition Pictographs, Shelter No. 1, Helena National Forest, Montana 4
Alan Cressler:
Foothills Abstract Tradition Pictographs, Shelter No. 2, Helena National Forest, Montana 2
Alan Cressler:
Foothills Abstract Tradition Pictographs, Shelter No. 2, Helena National Forest, Montana 1
Alan Cressler:
Foothills Abstract Tradition Pictographs, Shelter No. 1, Helena National Forest, Montana 1
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 14
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 1
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 13
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 2
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 3
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 12
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 11
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 10
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 9
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 8
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 6
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 4
Alan Cressler:
Foothills Abstract Tradition Pictographs, Helena National Forest, Montana 1
Alan Cressler:
Prehistoric and Protohistoric Pictographs, Pictograph Cave, Indian Cave State Park, Yellowstone County, Montana 7
Alan Cressler:
Prehistoric and Protohistoric Pictographs, Pictograph Cave, Indian Cave State Park, Yellowstone County, Montana 6
Alan Cressler:
Prehistoric and Protohistoric Pictographs, Pictograph Cave, Indian Cave State Park, Yellowstone County, Montana 2
Alan Cressler:
Prehistoric and Protohistoric Pictographs, Pictograph Cave, Indian Cave State Park, Yellowstone County, Montana 4
Alan Cressler:
Prehistoric and Protohistoric Pictographs, Pictograph Cave, Indian Cave State Park, Yellowstone County, Montana 3
Alan Cressler:
Prehistoric and Protohistoric Pictographs, Pictograph Cave, Indian Cave State Park, Yellowstone County, Montana 5
Alan Cressler:
Prehistoric and Protohistoric Pictographs, Pictograph Cave, Indian Cave State Park, Yellowstone County, Montana 1