The reservation was of the Navajo Nation, and the experience will be broadcast Tuesday evening on FX as the season ends.
Spurlock lived for 30 days in a hogan on a ranch in Tohatchi. He was without running water or electricity, and the only job he could find was at a tire shop, where he made $25 a day.
"It's like America's dirty little secret. There's a lot of things people don't know about, and the reservation is like a Third World country," he said in a telephone interview with The Daily Times.
He also did not expect to be awakened each morning at 5 a.m. for a jog across the desert as he and Karl attempted to race the rising sun. Spurlock said that is one tradition he took away from this experience that he continues practicing.
"I don't beat the sun, but I'm pretty close," he said. During his morning runs, he thinks about his intentions for the day. "It really frees you up to focus. It's a great way to start the day."
Spurlock also came away from the Dine with a deep focus on the spiritual. He participated in a Coyote Ceremony, spending hours in a sweat lodge and faced some difficult memories from his past that he was able to let go of through the cleansing.