- Valles Marineris (Wikipedia)
Valles Marineris (/ˈvælɪs mærɪˈnɛərɪs/; Latin for Mariner Valleys, named after the Mariner 9 Mars orbiter of 1971–72 which discovered it) is a system of canyons that runs along the Martian surface east of the Tharsis region. At more than 4,000 km (2,500 mi) long, 200 km (120 mi) wide and up to 7 km (23,000 ft) deep, Valles Marineris is the largest canyon in the Solar System.
Washington Trails Association
- Ladder Creek Falls (wta.org)
Located behind the Gorge Powerhouse in Newhalem, Ladder Creek Falls offers a refreshing woodland retreat with exotic flora and close-up views of the third tier of this spectacular waterfall. When the hydroelectric project near Ross Lake was under construction during the 1930s and ’40s, owner and developer J.D. Ross built a trail to nearby Ladder Creek Falls to showcase the area.