Composed of many different types of volcanic rock, Big Bend National Park’s Tuff Canyon is a geologic wonder. My companion and I climbed through the canyon a good distance before we began to lose daylight. To save time getting back to our vehicle, we scaled one of the canyon walls. Three quarters of the way up, I couldn’t help taking a shot of the breathtaking view below us. Taken with a Nikon D7000 and 18-55mm f3.5-5.6 Nikkor lens. Click image to enlarge.