Black and white photograph of a gulley from above. A cactus is visible on the right side of the frame.

Black and white photograph of a group of camp tents set up around a flagpole in the distance.

Black and white photograph of a cliff face.

Black and white photograph of a gulley with tents visible in the distance.

Black and white photograph of a group of tents and automobiles in a field.

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.

Black and white photograph of a woman, Gert, sitting and sketching on a portable easel in front of trees.

Black and white photograph of groups of people standing in front of piles of gravel, the face of a rock ledge, and a wooden house.

Black and white photograph of a group of people standing next to a line of automobiles alongside a dirt road.

Black and white photograph of a line of automobiles alongside a road at the bottom of a hill.

Black and white close-up photograph of an ancient Native American clay pipe found in Olivet, Michigan.

Black and white photograph of a man standing in a ditch filled with water. Two men are squatting at the edge of the ditch and another man is standing next to the ditch in the background.

Black and white photograph of a group of seven men standing in front of trees.

Black and white close-up photograph of the outer side of a mammoth tooth.

Black and white close-up photograph of the inner side of a mammoth tooth.

Black and white photograph of a man, Tony, holding a mammoth tooth in front of a house.

Black and white photograph of Lamont artifacts including part of a skull.

Group of ten men with shovels

Group of ten men with shovels

Black and white photograph of people working in a ditch in a street lined with houses.

Black and white photograph looking down a street lined with tall buildings. Automobiles are parked along the street, and people are visible walking.

Black and white photograph looking down a street lined with tall buildings. Automobiles are parked along the street, and people are visible walking.

Black and white photograph of two men, Dr. Frank Leverett and [?] Taylor. A person's shoulder is visible in the bottom left corner of the frame.