Oral history interview with Helen Mortenson conducted by Claytee D. White on May 06, 2014 for the Boyer Early Las Vegas Oral History Project. In this interview, Mortenson discusses Cygnus Scientific, a consultation firm specializing in nuclear, radiological, and environmental issues. She goes on to describe the Ice Age Park Foundation, managing her husband’s political campaign, and her archaeological pursuits. Later, Mortenson discusses her discovery of a Shasta ground sloth at Devils Peak, Nevada in 1990.