Tucked into the foothills of the Coast Range just west of Portland, the Hagg Lake Loop Trail at Scoggins Valley Park offers over 13 miles of scenic trails ideal for hiking, trail running, and mountain biking. Starting from the Elks Recreation Area, this trail circles Henry Hagg Lake, offering panoramic views of the water, peaceful forest corridors, and open meadows teeming with wildlife.
Access is provided from many trailheads, allowing for shorter trips or a completion of the entire 13-mile loop (11 miles on dirt/gravel and 2 miles on pavement). The loop features paved sections at Eagle Point Recreation Area (480’) and Sain Creek Recreation Area (934’).
Difficulty: Moderate
Trail Type: Loop
Trail Surface: Packed dirt and gravel, with some roots and uneven sections
Best Time to Visit: March through October
For hikers, this trail offers a varied and engaging route with rolling terrain, shaded forest paths, and multiple lake viewpoints. There are several trailheads along the lake, allowing for shorter out-and-back hikes if you prefer not to complete the full loop. Wildlife sightings—including osprey, deer, and woodpeckers—are common, especially in the quieter morning hours.
The Hagg Lake Loop is a favorite among beginner to intermediate mountain bikers in the Portland metro area. The trail is mostly non-technical, with a few small climbs, roots, and switchbacks to keep things interesting. Riders can enjoy fast-rolling sections, scenic lake views, and a remote feel without being far from town. The trail is multi-use and bidirectional, so bikers should ride cautiously and yield to hikers when needed.
Open year-round from sunrise to sunset
Note that some gates and access points may be closed during winter months
Day-use parking fee required:
$7 per vehicle
Pay onsite or purchase an annual pass
Elks Recreation Area provides ample parking, restrooms, picnic tables, and lake access
Other access points include C-Ramp, Sain Creek, and Dam Overlook
The loop can be started from any trailhead, allowing flexibility in planning your route
Yes, leashed dogs are permitted throughout the trail system
Be sure to bring waste bags and water, especially on warmer days
Trail conditions vary by season; expect muddy patches in spring
Cyclists should wear helmets and be alert on blind corners
Bring plenty of water—there are limited fountains along the route
Cell signal can be spotty in parts of the loop—download maps in advance
Restrooms are located at most major trailheads around the lake