common occurance in some regions
- Sammamish River Trail (wta.org)
The Sammamish River Trail is a 9.5-mile trail with one end at Marymoor Park in Redmond, passing through Woodinville, and the other end at Blythe Park in Bothell. At Blyth Park, it connects with the Burke-Gilman Trail and continues another 18.8 miles ending at Golden Gardens in Seattle.
- Mars (Wikipedia)
Mars is the fourth planet and the furthest terrestrial planet from the Sun. The reddish color of its surface is due to finely grained iron(III) oxide dust in the soil, giving it the nickname “the Red Planet”. Mars’s radius is second smallest among the planets in the Solar System at 3,389.5 km (2,106 mi). It has a surface gravity of 3.72 m/s2 (12.2 ft/s2), which is 38% of Earth’s gravity. The Martian dichotomy is visible on the surface: on average, the terrain on Mars’s northern hemisphere is flatter and lower than its southern hemisphere. Mars has a thin atmosphere made primarily of carbon dioxide and two irregularly shaped natural satellites: Phobos and Deimos.
