Marble Canyon, Grand Canyon, Arizona, U.S. Down on the mile-deep floor ... State (an area of 71,298 square miles) that were free of human-made noise for intervals of 15 minutes or longer.

Phantom Ranch is the only lodging at the bottom of Grand Canyon. Phantom Ranch closed for ... The Phantom Ranch lottery, which is free to enter, starts on the first day and ends on the 25th ...