Sr 520 Trail is a hiking and biking trail in King County, Washington. It is within Hunts Point Playfield, Fairweather Nature Preserve, and Wetherill Nature Preserve. It is 4.9 miles long and begins at 52 feet altitude. Traveling the entire trail is 9.7 miles with a total elevation gain of 560 feet. Near the trailhead there are parkings. The Lake INRIX water can be seen along the trail. There are also a wetland, wetlands, and a wetland along the trail.
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