After a day of excavation, Thomas and his crew stopped by a local diner. At the dinner, Thomas spoke with the waitress's husband, Gale Peer, a mining geologist with over 40 years of experience in the Great Basin. Peer gave the crew of archaeologists a few general directions to an interesting cave with possible rock art. The following year, Thomas returned and attempted to search for this cave. After searching through nearly 15 canyons in the area, driving through and getting out of the car to physically check the caves and rock shelters, Thomas ended at the Mill Canyon. At the opening of the rock shelter, Thomas observed pictographs but no visual artifacts. The paintings were human figures in red and yellow as well as cryptic motifs in black and white on the ceiling and rear wall. Thomas then dug a deep test pit to ensure the potential of the site. The test pit revealed sub-surface deposits and incised stones with some burned bones. Given the potential for undisturbed deposits useful for establishing a chronological framework for the area, further excavations began in 1971 and continued for nearly 7 years.
