Patterned after the highway yield sign, the standard trail users yield sign; Phoenix, Arizona
Patterned after the highway yield sign, the standard trail users yield sign; Phoenix, Arizona
Patterned after the highway yield sign, the standard trail users yield sign; Phoenix, Arizona
Crusher fines trail built up to form a bench; Lomaki Wupatki National Monument, Arizona
Crusher fines trail built up to form a bench; Lomaki Wupatki National Monument, Arizona
Crusher fines trail built up to form a bench; Lomaki Wupatki National Monument, Arizona
Standard trail identification and numbering markers applied to fiberglass post; Phoenix Mountain Parks, Arizona
Standard trail identification and numbering markers applied to fiberglass post; Phoenix Mountain Parks, Arizona
Standard trail identification and numbering markers applied to fiberglass post; Phoenix Mountain Parks, Arizona
Conservation crew members from the American Conservation Experience at work on the South Kaibab Trail in the Grand Canyon
Conservation crew members from the American Conservation Experience at work on the South Kaibab Trail in the Grand Canyon
Conservation crew members from the American Conservation Experience at work on the South Kaibab Trail in the Grand Canyon
The Bright Angel Trail was originally used by the Havasupai Indians to commute between the South Rim and Indian Garden; Grand Canyon, Arizona
The Bright Angel Trail was originally used by the Havasupai Indians to commute between the South Rim and Indian Garden; Grand Canyon, Arizona
The Bright Angel Trail was originally used by the Havasupai Indians to commute between the South Rim and Indian Garden; Grand Canyon, Arizona
Mule Riders on South Kaibab Trail, Grand Canyon National Park, AZ
Mule Riders on South Kaibab Trail, Grand Canyon National Park, AZ
Mule Riders on South Kaibab Trail, Grand Canyon National Park, AZ
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