Photograph showing 5 mountaineers posing on the snow-capped peak of Mount Adams in Washington. Four of them carry walking sticks. Handwritten note on the back of the print reads, "Mazamas, Mt. Adams."

Photograph showing a group of approximately 50 mountaineers sitting around a campfire. A tent is strung up between 2 trees on the left. Handwritten note on the back of the print reads, "Mazamas, Mt. Adams."

Photograph showing a group of mountaineers lining up to enter a mess tent. A few people in line hold plates. Handwritten note on the back of the print reads, "Mazamas, Mt. Adams."

Photograph showing 2 female mountaineers preparing to traverse a creek at the base of a waterfall. They wear long dresses and hats. Handwritten note on the back of the print reads, "Mazamas, Mt. Adams."

Photograph showing 4 mountaineers in the snow on the peak of Mount Adams in Washington. Three of them kneel near a pile of rocks. One stands and puts his hand on his hat. Handwritten note on the back of the print reads, "Mazamas, Mt. Adams."

Photograph showing a view of the summit of Mount Adams in Washington. Taken from an open, snowy area below the summit. Handwritten note on the back of the print reads, "Mazamas, Mt. Adams."

Photograph showing 2 mountaineers standing on the edge of a body of water below the summit of Mount Adams in Washington. Adams Glacier is visible behind them. Handwritten note on the back of the print reads, "Mazamas, Mt. Adams."

Photograph showing a line of approximately 35 mountaineers hiking on a trail. The area behind them is flat and contains several wooden structures. Those in front of the line look to the left. Taken from an area above the mountaineers, looking down at them. Handwritten note on the back of the print reads, "Mazamas, Mt. Adams."

Photograph showing a group of approximately 30 people walking on a wide dirt trail. One woman in the back turns her head and smiles at the camera. A portion of a mountain is visible in the background. Handwritten note on the back of the print reads, "Mazamas, Mt. Adams."

Photograph showing a line of approximately 50 mountaineers hiking up a snow field on a mountain, likely Mount Adams in Washington. Clouds are visible in the background below the group. Handwritten note on the back of the print reads, "Mazamas." Stamp on the back of the print for Angelus Commercial Studio.

Photograph showing 6 people sitting in a row in the snow on Mount Adams in Washington. They smile at the camera. The man on the right is likely Martin Gorman. He holds a walking stick. Handwritten note on the back of the print reads, "Mazamas, Mt. Adams."