Directions to a place explorer Robert W. Limbert noted in a file called "places to look up." Handwritten on his own letterhead, the directions are written starting in Shoshone, Idaho, and ends with looking into a bat cave close to Richfield, Idaho.
Harold Wiggs peers into a cave while standing in a pool of water. Wiggs accompanied explorer Robert Limbert during his travels into the Bruneau River Valley in 1921.
Robert W. Limbert and his exploration party stop to pose on a large volcanic mass. Two men stand on parts of the volcanic rock, while another man sits inside.
Five male explorers rest in the cave that explorer Robert W. Limbert named Amphitheater Cave. Limbert described the cave as being "explored for half a mile underground until we came across apparently fresh bear tracks when we turned around and came...
Printed in Robert W. Limbert's National Geographic article on his expeditions, this is an interior shot of what he called Amphitheater Cave in Craters of the Moon. "This is one of a series of eight caves found near the Bridge of Tears. It is an...
Four men from the June 1921 expedition examine a large crater in the volcanic floor, including Robert W. Limbert (far right). A rifle sits in the distance.
A cross section drawing of people exploring and excavating a cave. This slide is part of a collection of teaching materials prepared by Edward Rhodenbaugh.
Margaret Limbert (top row, far right) and Robert W. Limbert (bottom row, far right) pose with six unidentified men and women inside a dark room with a low ceiling. Graffiti is scattered across the walls, including the words "George" and "Bill."