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Routes
Hiking trails & Routes
United States
California
Madera County

River Trail

Moderate

4.8

(8350)

8,351

hikers

River Trail

02:40

9.52km

10m

Hiking

Embark on the River Trail for a moderate hike through the Ansel Adams Wilderness, where you will follow the Middle Fork San Joaquin River. This route offers a gentle journey, covering 5.9 miles (9.5 km) with a minimal elevation gain of just 36 feet (11 metres). You can expect to…

Last updated: April 23, 2026

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Waypoints

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1

1.99 km

Trail following the Middle Fork San Joaquin River

Highlight • Trail

Following this trail through the valley along the Middle Fork San Joaquin River. It is a lower alternative that parallels the Pacific Crest trail, requiring less elevation change but still …

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2

2.64 km

Cinnamon Bear Spur Trail

Highlight • Trail

If you come from Garnet Lake and reach the San Joaquin River in late spring or early summer during snow melt, you might not be able to cross it safely …

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3

3.80 km

4

5.04 km

Sometimes named after Shadow Creek, the trail follows on the north side of the creek until merging a mile later.

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5

7.05 km

Olaine Lake

Highlight • Lake

Olaine Lake is the first glimpse of the alpine lake scenery you can expect in the Sierra Nevada. The trail is flat and wide – perfect for a family stroll.

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B

9.52 km

End point

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Way Types & Surfaces

Way Types

9.52 km

Surfaces

9.51 km

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Elevation

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Thursday 7 May

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Frequently Asked Questions

What is the difficulty level of the River Trail?

The River Trail is rated as moderate. While it features a significant descent of nearly 500 meters, the overall elevation gain is minimal, making it manageable for hikers with some experience. Sections can be rugged, so appropriate footwear is recommended.

Are dogs allowed on this trail?

Yes, dogs are generally permitted on trails within the Ansel Adams Wilderness, including the River Trail. However, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all visitors. Please remember to pack out all pet waste.

What is the best time of year to hike the River Trail?

The best time to hike the River Trail is typically from late spring through early fall (May to October). During these months, the weather is generally pleasant, and the trail is free of snow. Spring offers vibrant wildflowers, while fall provides beautiful foliage. Winter hiking can be challenging due to snow and ice.

Do I need a permit or pay an entrance fee for the Ansel Adams Wilderness?

Yes, permits are required for overnight stays in the Ansel Adams Wilderness. For day hikes on the River Trail, a wilderness permit is generally not required, but it's always best to check the latest regulations with the Inyo National Forest or Sierra National Forest offices, as rules can change. There is no general entrance fee for the wilderness area itself, but specific trailheads or parking areas might have fees.

Where can I park to access the River Trail?

Specific parking information for the River Trail trailhead is not provided in the data. However, for trails within the Ansel Adams Wilderness, parking is typically available at designated trailheads. It is advisable to arrive early, especially during peak season, as parking can be limited. Check local forest service websites for detailed trailhead access and parking instructions.

What kind of terrain can I expect on the route?

The River Trail offers varied terrain. You can expect natural surfaces, which may include dirt paths, some rocky sections, and potentially areas with crushed gravel. As a river trail, it often follows the contours of the landscape, which can include gentle slopes and more rugged stretches, especially given its moderate difficulty rating and significant descent.

What can I see along the River Trail?

Along the River Trail, you'll experience the beauty of the Middle Fork San Joaquin River 🏞️, with the trail often following its course. You'll also pass by the Trail following the Middle Fork San Joaquin River and the Cinnamon Bear Spur Trail. Further along, you might encounter the 1000 Island Lake Trail fording small creek and the serene Olaine Lake.

Does the River Trail intersect with other well-known paths?

Yes, the River Trail intersects with several other paths. While the River Trail makes up 100% of this route, sections of it also overlap with the Shadow Creek Trail, Garnet Lake Cutoff, Clark Lakes Trail, and a portion of the PCT - California Section H. This offers opportunities for longer or alternative hiking options if you wish to explore beyond the main route.

Is the River Trail suitable for families with children?

Given its 'moderate' difficulty rating and a significant descent, the River Trail might be challenging for very young children or families new to hiking. However, active families with older children who are accustomed to longer distances and varied terrain should find it enjoyable. Always assess your family's fitness level before embarking on the full 9.5 km route.

What kind of wildlife might I encounter?

As the River Trail is located within the Ansel Adams Wilderness, you have the chance to see diverse wildlife. Common sightings can include various bird species, deer, and smaller mammals. Keep an eye out for raptors like eagles and osprey near the river. Always maintain a respectful distance and never feed wild animals.

Are there any opportunities for wild swimming along the route?

While the trail follows the Middle Fork San Joaquin River 🏞️ and passes Olaine Lake, specific designated wild swimming spots are not detailed. However, river trails often provide access to natural water bodies. Always exercise caution, check water conditions, and be aware of any local regulations regarding swimming in wilderness areas.

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