
JIM MCMAHON/MAPMAN ®
A dozen explorers set up camp near Gypsum Cave in January 1930. They were searching the cave system near Las Vegas, Nevada, for evidence of what lived there thousands of years ago. Bones, fossils, and
Each day, the explorers searched the cave for signs of ancient life. Over several weeks, they found preserved animal droppings, bones, and bits of human-made tools. Back at camp, the crew’s secretary organized the findings. She was a young Native American woman of Abenaki (a-buh-NAH-kee) and Seneca ancestry named Bertha Parker.