10th Annual Smithsonian Magazine Photo Contest Natural World
Light at the End of the Tunnel: The Southwest certainly does not lack for interesting geological formations, and Zion's subway is one of the best. This unique scene is the reward for those adventero

Light at the End of the Tunnel: The Southwest certainly does not lack for interesting geological formations, and Zion's subway is one of the best. This unique scene is the reward for those adventerous enough to brave a challenging 9 mile trek.

Photo Detail
Date Taken: 10.2011
Date Uploaded: 11.2012
Photo Location: Utah, United States of America
Camera: NIKON D300S
Copyright: © Greg Tucker