While cross-ripping a 3:1 slope on Cell 15 leach pad, a Caterpillar D8 dozer encountered a rock which caused the dozer to roll over approximately 120 degrees onto the right side of the dozer. The operator was removed from the cab in less that 30 minutes and there was no injury to the miner. The miner was evaluated at the hospital as a precaution and released to full duty.