Sun Top Loop Trail For Mountain Biking

The 40th most popular mountain bike trail in Washington.

Facebook Pinterest Twitter Email

Near Greenwater, the 16 mile Sun Top trail (#1183) is a challenging loop with 3200' vertical and vistas of Mt. Rainier. To reach the mountain biking trailhead from Seattle, head south on US5. Follow SR410 east for 6.5 miles through Greenwater and turn right on FS73. Park just across the bridge.

Continue riding up FS73 and turn left on FS7315 to the lookout tower. Climb for 6 miles up 2,800’. Just before the summit, the trail begins on the left (before the parking area). On the trail, continue climbing over the next mile before starting a wild descent. Stay left at all forks and downhill across all roads.

At the intersection with FS71 near the airport, head past the airport. Before the wooden bridge, turn left on the Skookum Flats Trail for a 6 mile technical singletrack back to the car park.

Overall, Sun Top Loop Trail is the 40th most popular mountain bike trail of all 59 mountain biking rides in Washington. Several of the better mountain bike trails are nearby Sun Top Loop Trail including Skookum Flats / White River Loop Trail, Middle Fork Snoqualmie River Trail, Stehekin Valley Road, Skagit River and Skookum Flats Trail.

North Cascades (WA/US)

North Cascades (WA/US)


Local Contact(s):  MBSNF Mt. Baker Ranger District (206) 856-5700; WA Tourism (800) 544-1800

Best Season:  Jul. - Oct.

Average Difficulty:  Moderate

Luxury Loding:  Summit Inn, Snoqualmie (800) 557-STAY; Salish Lodge (800) 826-6124

Reference Source:  click here

Date Published:  1/5/2016

Date Updated:  7/5/2016

ID:  11011


Our one-step registration gives you instant, unlimited access to all of our printable trail guides for ALL sports in ALL regions worldwide.

For Sun Top Loop Trail in Washington, our printable trail guides offers trail descriptions, maps, lodging suggestions, driving directions, levels of difficulty and points-of-contact.