4.7
(2165)
5,544
runners
01:12
10.4km
270m
Running
Jog the Bumping Knots Loop, a moderate 6.5-mile trail in L.L. Stub Stewart State Park with forest views and an old train trestle.
Last updated: February 26, 2026
Waypoints
Start point
Parking
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849 m
Highlight • Trail
Tip by
4.33 km
Highlight (Segment) • Trail
Tip by
10.4 km
End point
Parking
Way Types & Surfaces
Way Types
7.97 km
1.78 km
331 m
314 m
Surfaces
9.96 km
331 m
105 m
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Elevation
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Weather
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Today
Tuesday 19 May
18°C
6°C
39 %
Additional weather tips
Max wind speed: 17.0 km/h
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This route was planned by komoot.
Komoot estimates the Bumping Knots Loop takes approximately 1 hour and 11 minutes to complete for jogging. However, this can vary based on your fitness level and how often you stop to enjoy the scenery.
The trail offers a varied experience, combining sections of old logging roads with purpose-built singletrack. You'll encounter dirt paths, some smooth rolling sections, and significant elevation changes with steep climbs and descents. Be prepared for potentially muddy conditions, especially during the rainy season, which can make some parts challenging for running shoes.
While rated as 'moderate' for running, the Bumping Knots Loop can be quite challenging due to its varied terrain and elevation changes. It's described as having 'lung-busting' climbs. Beginners with good fitness might manage, but those new to trail jogging should be prepared for a strenuous workout.
Yes, dogs are generally allowed in L.L. Stub Stewart State Park, but they must be kept on a leash. Always check the latest park regulations before your visit.
The Bumping Knots Loop is located within L.L. Stub Stewart State Park. Parking is available at various trailheads within the park. You'll want to find parking that provides direct access to the loop.
Yes, L.L. Stub Stewart State Park typically requires a day-use parking fee or a valid Oregon State Parks Pass. Always check the official Oregon State Parks website for the most current fee information and regulations before you go.
The loop winds through a shaded forest rich with ferns and wildflowers. You'll trace along Williams Creek for a portion and climb to a ridge offering occasional eastward views across the park valley. A notable historical feature is an old wooden train trestle along the route. You'll also pass through the Forest Trail in L.L. Stub Stewart State Park and the Bumping Knots Loop itself.
The trail can be enjoyed year-round, but conditions vary. Spring brings wildflowers, while fall offers vibrant foliage. Be aware that during the rainy season (e.g., February), the trail can become very muddy, making it less ideal for jogging shoes. Summer offers drier conditions, but always be prepared for potential mud in shaded or low-lying areas.
Yes, the Bumping Knots Loop is part of an extensive network of trails within L.L. Stub Stewart State Park. The route also passes through sections of the Banks-Vernonia Trail, the Tualatin Valley Scenic Bikeway, the Salmonberry Trail, Hollies Point of View Trail, and the Timber Beast Trail.
Given the varied terrain and potential for mud, sturdy trail running shoes with good grip are recommended. Dress in layers, as the forest can be shaded and temperatures can fluctuate. Bring plenty of water, especially on warmer days, and consider a small backpack for essentials like snacks, a map, and a first-aid kit.
One insider tip is to be mindful of the multi-use nature of the trail; you might encounter hikers and equestrians. Some lowland sections can be 'choppy and torn up from hooves,' so watch your footing. Also, be prepared for significant elevation changes, as the trail offers a 'roller-coaster romp' feel that provides a good workout.