Tunnel Loop via Confluence Trail

Parking is available near the trailhead. Given the trail's popularity, especially on weekends, it's highly recommended to arrive early to secure a spot.

Yes, dogs are permitted on this trail, but they must be kept on a leash at all times.

The trail is accessible year-round. Spring is particularly beautiful with wildflowers, while fall offers pleasant temperatures. If hiking after rain, be aware that some sections might be washed out or have obstacles.

The Tunnel Loop via Confluence Trail is located within the Auburn State Recreation Area. While specific permits for hiking the trail itself are generally not required, there may be day-use fees or parking fees associated with accessing the recreation area. It's best to check the official ca.gov or visitplacer.com websites for the most current information on fees and regulations.

The terrain is diverse, starting as a fire road before narrowing into singletrack. You'll encounter a mix of smooth paths and rocky sections. Some parts are quite narrow with significant exposure, and there are 'chunky rock sections' that can be challenging. Caution is advised, especially after rain.

The trail offers exceptional views of the Middle Fork of the American River, especially where it meets the North Fork. You'll also see rolling chaparral, open grasslands, and unique views of a quarry site. In a larger loop, you might even catch glimpses of the Foresthill Bridge and Lake Clementine.

The Tunnel Loop via Confluence Trail is generally rated as moderate. While some sections are relatively easy, there are rocky and narrow parts with exposure that might be challenging for newer hikers or those less confident with uneven footing. It's not considered a beginner-specific trail.

Yes, the route also passes through sections of the ADT - California - T - Seg 4, Western States 100 Endurance Run, Confluence Trail, Stonewall OHV, and Culvert Trail, offering options for longer excursions or varied experiences.

Given the varied terrain and potential exposure, we recommend bringing plenty of water, sturdy hiking shoes with good ankle support, sun protection (hat, sunscreen), and snacks. Trekking poles can be helpful for the rocky sections.

To avoid crowds and ensure parking, especially on weekends, plan to start your hike early in the morning. This also allows you to enjoy the cooler temperatures and quieter trail before it gets busy.

While the trail itself is a natural environment, facilities like restrooms and water sources are typically found at the main trailheads or visitor centers within the Auburn State Recreation Area. It's always best to carry enough water for your entire hike as on-trail sources are not guaranteed.