- Duzina: 8 km
- USGS 7.5´ Quadrangle: McCurdy Mountain
- Arch Altitude: 8,960 feet
- Arch Position: 39° 11.46´ N; 105° 23.69´ W
Harmonica Arch
Thunder Pyramid 13932 ft / 4246 m Lightning Pyramid 13722 ft / 4182 m Elk Mointains, Colorado Datum: Juni 04 2017 Ove dvije ...