Black and white photograph (damaged negative) of mastodon bones in an excavation site.

Black and white photograph of two men creating plaster casts of mastodon bones, Jonio, Italy(?).

Black and white photograph of three men carrying a cast of a mastodon bone out of an archaeological site of mastodon bones.

Black and white photograph of a man standing next to a car behind a large hole.

Black and white photograph of the foundation of a house.

Black and white photograph of an archaeological plot with bison bones and a spade.

Black and white photograph of three people, Jean Worman, Bob White, and Herb Dick, working on an archeological site.

Black and white photograph of an archaeological plot surrounded by tape measurements and marked with the number "4" in the top right corner, in the center of the plot a stone spear or arrow point is visible.

Black and white photograph of an archaeological plot marked with the number "3". Animal bones are visible in the dirt.

Black and white photograph of a gulley from above. A white box is visible on top of a cliff in the top left corner of the frame.

Black and white photograph of a field in front of cliff faces. On the left is an archaeological excavation site with two men working.

Black and white photograph of a valley filled with trees.