About mountain biking in Grays Harbor County

Grays Harbor County, Washington has 59 named trails tagged for mountain biking, covering 65.6 miles, an average of 1.1 miles each. The longest is Larch Mountain West / Upper Twin Peaks, at 8.7 miles. 3 run 5 miles or longer.

What the mountain biking trails in Grays Harbor County are like

By length, 44 are under a mile, 12 run 1 to 5 miles, and 3 are 5 miles or longer.

Every one carries a difficulty rating: 19 easy, 34 moderate, and 6 hard. Of the 59 with measured elevation, Larch Mountain West / Upper Twin Peaks climbs the most, about 3,012 ft, and 2 gain 1,000 ft or more.

All 59 mountain biking trails, longest first

Larch Mountain West / Upper Twin PeaksHikeMTB8.7 mi PorterHikeMTB7.2 mi North Rim #3HikeMTB6.9 mi Porter TrailHikeMTB4.6 mi Chehalis River TrailHikeMTB3.7 mi CrestlineHikeMTB3.4 mi Westport Light TrailHikeMTB2.3 mi Sylvia Ridge TrailHikeMTB1.8 mi Sylvia Creek Forestry TrailHikeMTB1.5 mi Lake TrailHikeMTB1.5 mi Buck Lake LoopHikeMTB1.3 mi Basich TrailwayHikeMTB1.3 mi C-2710HikeMTB1.3 mi Brownie TrailHikeMTB1.1 mi Greenline TieHikeMTB1.1 mi Schilly TrailHikeMTB0.9 mi Porter FallsHikeMTB0.8 mi A-1600 TrailHikeMTB0.8 mi Jungle TrailHikeMTB0.8 mi Fuzzy Top TrailHikeMTB0.7 mi Sergeant MeowsteinHikeMTB0.7 mi Aunt BethanyHikeMTB0.6 mi North TrailHikeMTB0.6 mi Mike-O-RamaHikeMTB0.6 mi East RoadHikeMTB0.6 mi Seabrook Perimeter TrailHikeMTB0.6 mi Mid-EarthHikeMTB0.6 mi West Fork Link-The JungleHikeMTB0.5 mi Neopolitan CharlieHikeMTB0.5 mi Espresso ShotHikeMTB0.5 mi X Link (Dirty Peanut)HikeMTB0.5 mi Get the Stink OutHikeMTB0.5 mi Hamby Hill LoopHikeMTB0.5 mi Porter Tie TrailHikeMTB0.4 mi Gary Laser EyesHikeMTB0.4 mi Hamby Hill EastHikeMTB0.4 mi Snake OilHikeMTB0.4 mi SunburntMTB0.3 mi Steam DonkeyHikeMTB0.3 mi GeronimoHikeMTB0.3 mi Pine WinderHikeMTB0.3 mi Joels TrailHikeMTB0.3 mi Cousin EddieHikeMTB0.3 mi 13 TablesMTB0.3 mi PoseidonMTB0.3 mi Narnia TrailHikeMTB0.3 mi West RoadHikeMTB0.2 mi Hot TomatoHikeMTB0.2 mi Maid Brigade TrailHikeMTB0.2 mi Zipline TrailMTB0.2 mi Highway 1-o-FunMTB0.2 mi Aunt EdnaHikeMTB0.2 mi TsunamiMTB0.2 mi Serpent's TailHikeMTB0.2 mi Old Narnia TrailHikeMTB0.2 mi RiptideMTB0.2 mi Burke TrailHikeMTB0.2 mi GrootHikeMTB0.1 mi Burk's BypassHikeMTB0.1 mi

← All Grays Harbor County trails

Trail geometry from OpenStreetMap contributors, licensed ODbL. Elevation from the USGS 3D Elevation Program. Compiled and published by Trailmonger · trail data last rebuilt October 25, 2026.