Stimpson Main Loop Trail
Stimpson Main Loop Trail
4.8
(1239)
10,703
hikers
01:22
4.92km
90m
Hiking
Step into a truly wild and ancient forest on the Stimpson Main Loop Trail, a rewarding hike near Bellingham. This route takes you through a diverse temperate rainforest, showcasing towering Douglas Fir trees over 400 years old, western hemlock, and redcedar, all surrounded by a vibrant undergrowth of ferns. You'll traverse well-defined singletrack, winding through small valleys and past seasonal streams, with the chance to spot wildlife like pileated woodpeckers and barred owls.
Planning your visit is straightforward, though it's important to know that dogs and bicycles are not permitted in the Stimpson Family Nature Reserve to preserve its delicate ecosystem. The trail is generally well-maintained and often remains dry even when other local paths are muddy, making it a good choice year-round. It's an easy 3.1-mile (4.9 km) hike with 299 feet (91 metres) of elevation gain, typically taking about 1 hour and 21 minutes.
What makes this trail particularly special is its pristine, mature forest tract, offering a genuine escape into a complex ecosystem just minutes from Bellingham. Educational signs along the way provide insights into the local ecology, enhancing your understanding of this unique habitat. It's a perfect option for beginners or anyone looking for a high-payoff, easy hike through an old-growth forest.
Last updated: June 9, 2026
Tips
Your route passes through protected areas
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Waypoints
Start point
Parking
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1.46 km
Highlight (Segment) • Trail
Tip by
4.92 km
End point
Parking
Way Types & Surfaces
Way Types
4.85 km
< 100 m
Surfaces
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Elevation
Highest point (240 m)
Lowest point (160 m)
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Weather
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Friday 14 August
26°C
13°C
23 %
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This route was planned by komoot.
The Stimpson Main Loop Trail is approximately 4.9 kilometers (3.05 miles) long. Most hikers complete the loop in about 1 hour and 22 minutes, depending on their pace and how often they stop to enjoy the scenery.
The Stimpson Main Loop Trail is generally considered to be of moderate difficulty. While it's not overly strenuous, it features rolling climbs and descents with some sections becoming steeper. It's suitable for hikers with some experience and active families.
The trail primarily consists of a well-defined singletrack. You'll encounter gentle slopes, some sections with roots, and small wooden bridges crossing marshy areas. During longer descents, the path can become rocky. While generally dry, a few spots might have mild mud. The initial 0.1 miles leading to the Beaver Pond Viewpoint are a fully accessible gravel path.
This trail is renowned for its stunning old-growth forest, featuring Douglas Fir trees over 400 years old, western hemlock, and redcedar. You'll pass through dense forest, moss-covered areas, vast fern fields, and wetlands, including Beaver Pond and Geneva Pond. The reserve is home to beaver, deer, cougar, various birds like pileated woodpeckers and wood ducks, owls, frogs, and snakes. After heavy rains, small streams and waterfalls add to the picturesque landscape.
The Stimpson Main Loop Trail is a great option year-round. It's particularly notable for often remaining dry even when other local trails are muddy, making it a good choice after heavy rains. The old-growth forest offers beauty in all seasons, with wild mushrooms appearing depending on the time of year.
No, pets are prohibited on the Stimpson Main Loop Trail and throughout the Stimpson Family Nature Reserve. This regulation helps preserve the undisturbed natural environment and protect the wildlife.
No, there are no permits or entrance fees required to hike the Stimpson Main Loop Trail or visit the Stimpson Family Nature Reserve. The reserve is dedicated to preservation and is open for public enjoyment.
Parking is available at the trailhead for the Stimpson Family Nature Reserve. There is a privy (restroom) located at the trailhead for convenience.
Yes, the trail offers glimpses of Lake Whatcom through breaks in the trees. You'll also encounter two prominent ponds, Beaver Pond and Geneva Pond. The primary highlight is the undisturbed old-growth forest itself, with ancient Douglas Fir trees over 400 years old. Interpretive signs along the way provide insights into the natural surroundings.
Yes, the route primarily follows the Stimpson Main Loop, covering about 94% of it. It also briefly passes through a section of the Moto's Run trail for about 6% of its length.
If you prefer to tackle a sustained climb earlier in your hike, consider traversing the loop clockwise. This direction involves a climb for about a mile. However, the trail is enjoyable in either direction.
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