1977 GLCA-EP (Glen Canyon National Recreation Area)
The 1977 GLCA-EP (Glen Canyon National Recreation Area) vertical, color aerial project was acquired by the U.S. National Park Service (NPS) at a scale of 1:12,000 (1 inch equals 1000 feet).
The 1977 GLCA-EP (Glen Canyon National Recreation Area) vertical, color aerial project was acquired by the U.S. National Park Service (NPS) at a scale of 1:12,000 (1 inch equals 1000 feet).
