Black and white lantern slide of a road sign for the "Home of the Minnesota Man," now known as the Pelican Rapids-Minnesota Woman, skeletal remains estimated at 8,000 years old.

Black and white lantern slide of a man leaning against a wall of stone at the East fork of Greenwood Creek.

Black and white lantern slide of Lena Merrill standing in front of a boulder in Yellowstone National Park.

Black and white lantern slide of the Fish Pot hot spring in Yellowstone National Park.

Black and white lantern slide of Roaring Mountain in Yellowstone National Park.

Black and white lantern slide of rock formations at the Silver Gate site in Yellowstone National Park.

Black and white lantern slide of Fort Yellowstone, Wyoming.

Color lantern slide of Grand Teton mountain taken from Jenny Lake, Wyomoing.

Color lantern slide of Grand Teton mountain taken from Snake River, Wyoming.

Black and white lantern slide of Audie Merrill standing next to a sign reading "Tropico de Cancer" along a roadside in Mexico.

Black and white lantern slide of two automobiles on dirt road near Saltillo, Mexico. One of the cars appears to be stuck and is surrounded by a small group of people.

Black and white lantern slide of a stream of water along a street in Saltillo, Mexico.