4.9
(3483)
16,618
hikers
03:01
10.4km
270m
Hiking
The Bonzai Loop is a 6.5-mile (10.4 km) hiking route rated moderate, located in McDonald Research Forest. You will gain 879 feet (268 metres) of elevation over an estimated 3 hours, making it a good option for a half-day adventure. This popular trail offers a varied experience for those looking…
Last updated: March 7, 2026
Waypoints
Start point
Parking
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5.71 km
Highlight (Segment) • Monument
Tip by
7.82 km
Highlight • Lake
Tip by
10.4 km
End point
Parking
Way Types & Surfaces
Way Types
6.14 km
4.29 km
Surfaces
5.19 km
3.75 km
1.02 km
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Elevation
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Wednesday 27 May
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This route was planned by komoot.
The Bonzai Loop is primarily located in the McDonald Forest near Corvallis, Oregon. Specific parking information for the trailhead is often available through Oregon State University Research Forests, which manages the area. It's advisable to check their official website for the most current parking locations and access points, especially near Peavy Arboretum or Lewisburg Saddle.
Yes, dogs are allowed on the Bonzai Loop trail. However, please remember that they should be kept on a leash where required by the Oregon State University Research Forests regulations.
The Bonzai Loop can be enjoyed year-round. However, the trail is primarily natural-tread dirt, so it can become quite muddy during the rainy season. For the most comfortable hiking experience, consider visiting during drier months.
The Bonzai Loop is part of the OSU Research Forests. Generally, there are no entrance fees for day use of the trails. However, it's always a good idea to check the Oregon State University Research Forests website for any specific permit requirements or updated regulations, especially for group activities or special uses.
The trail features a natural-tread (dirt) singletrack with some sections on old forest roads. It includes rolling terrain, descents, and climbs, with parts characterized by close vegetation and tight turns, and other sections opening onto rocky, abandoned roadbeds. You'll pass through plantations of Douglas-fir trees.
The Bonzai Loop is generally rated as 'moderate' for hiking. While some sections can be steep, particularly an initial part described as Road 562, the trail is generally easy to follow. Beginners with a reasonable level of fitness should find it manageable.
Along the Bonzai Loop, you can encounter some interesting points. These include the Powder House and the scenic Cronemiller Lake.
Yes, the Bonzai Loop offers excellent connectivity. It links to other trails like Dave's Trail and Vineyard Mountain, providing multi-use access between Peavy Arboretum and Lewisburg Saddle. The route also passes through sections of the Bonzai Trail, Section 36 Loop Trail, Powderhouse Trail, Calloway Creek Trail, and Dave's Trail.
The Bonzai Loop is a unique multi-use trail in the McDonald Forest. Unlike some other trails in the Peavy Arboretum area, it is open to hikers, mountain bikers, trail runners, and equestrians year-round.
The McDonald Forest is actively managed by Oregon State University Research Forests. Hikers should be aware that some trails, including potentially sections of the Bonzai Loop, may be closed seasonally or due to logging operations. Always check for current conditions and regulations before heading out.
Its primary distinction is its multi-use access. While many trails in the Peavy Arboretum area are restricted to pedestrians, the Bonzai Loop welcomes hikers, mountain bikers, trail runners, and equestrians year-round, making it a versatile choice for various outdoor enthusiasts.