Washington trails · San Juan County Land Bank - Turtleback Mountain Preserve Trails
San Juan County Land Bank - Turtleback Mountain Preserve Trails
A 11.9-mile network in Washington, with 751 ft of climbing. Reaches Ship Peak and other arch/summit/viewpoint destinations. Managed by San Juan County.
Elevation profile
The climbing leans toward the final third: 51% of the ascent falls between mile 8.0 and mile 11.9. It gives back about 2,861 ft along the way, so it rolls rather than climbing steadily.
3-D terrain
USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
Reaches
- Ship Peak (arch)
- Turtleback Mountain (summit)
- Ship Peak (viewpoint)
- Waldron Overlook (viewpoint)
Heads up
Getting there
San Juan County Land Bank - Turtleback Mountain Preserve Trails access. About 1 h 47 min drive (42 mi) from Mount Vernon. 48.64316, -122.97510 · directions
Daylight at the trailhead
On October 14, 2026 — the day this page was generated — first light reaches this trailhead at 6:58 a.m., the sun rises at 7:30 a.m. and sets at 6:24 p.m., and the last usable light fades about 6:56 p.m. (PDT) — 10 h 54 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 11.9-mile route takes roughly 4 h 47 min, so leaving the trailhead at sunrise puts you back around 12:17 p.m. — 6 h 07 min before sunset.
Loop options
- Morning Ridge Trail + San Juan County Land Bank - Turtleback Mountain Preserve Trails — 2.1 mi loop, 309 ft gain
- Lost Oak Trail + San Juan County Land Bank - Turtleback Mountain Preserve Trails + Morning Ridge Trail — 2.7 mi loop, 765 ft gain
Nearby trails
- Chuckanut Mountain — 22.8 mi