Shirttail Canyon

Total Miles 24.9
Technical Rating
2 Easy
Best Time Summer
Trail Type Full-Width Road
Accessible By
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Trail Overview

The main attraction of this route is a popular swimming hole below Colfax-Foresthill Suspension Bridge. Our round-about way of getting there follows a paved road through historic Iowa Hill, then continues on a narrow, winding dirt road through the forest. Take a picnic lunch and inner tube to enjoy the crystal-clear water of the American River inside Auburn State Recreation Area (fee area). Street-legal vehicles only. To go direct to swimming hole, use reverse directions.

Photos of Shirttail Canyon

Difficulty

Easy: First half is a twisting paved road, narrow in spots. Watch for bikers. Second half is an easy dirt road. Four-wheel drive recommended.

History

Gold was first discovered in Iowa Hill in 1853 and mining continued off and on into the 1930s. A few mines have been intermittently worked in recent years. Most mining has been hydraulic, scars of which you'll see along the route. One spot along Iowa Hill Road has sheer cliffs on each side of the road due to hydraulic undercutting.

Technical Rating

2

Status Reports

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John Michelsen
Jun 20, 2026
Open
About halfway through the trail there is a closed fence
Carter Figuly
Mar 28, 2026
Open
Brandin Breider
Mar 15, 2026
Open
Yankee Jim’s rd is closed on the western end of this trail until later in the year (2026). Best way to do this is to start at the eastern end of the loop and end up in foresthill. Take about 3 hours and is a nice little morning run.
Ilia Kuksin
Mar 07, 2026
Open
The ending is close. Trail itself is super easy, don’t waste your time on it, only if you want to experience new view and another good sunset
Austin
Feb 21, 2026
Open
Really fun after heavy snow towards the end of the route. Had to help a Penske truck back up the mountain due to hanging healthy tree in the road stopping them. Otherwise our suv made it through no problem. Super deep snow in one trail but otherwise very well maintained.
Jay Blasingame
Jan 19, 2026
Open
The trail was a pretty drive but was mainly paved. About 10 miles of the trail was dirt once you turn torward Yankee Jim. Although, the bridge was closed due to construction.
Lucas Caparas
Jan 04, 2026
Open
The road is wet due to the rain. Narrow roads, Many Hairpins. On the Picture attached, we needed to turn around due to a dead of a residential lot with alot of dogs barking with no leash. Did not complete the trail. A few rocks on the road due to land/mud slide. But easy trail.
Jon Rohrbaugh
Aug 02, 2025
Open
We took the long way going from mineral bar. Figure let’s go check if it’s still closed it is. Have to go the Yankee Jim trail to get out or back track.
Hayden Salem
Jun 22, 2025
Open
Alex P
May 28, 2025
Open
Road is closed between Shirttail Canyon Road and Gillis Hill Road
William P
May 24, 2025
Open
Trail was open and first part is road that leads down to the river. After that it’s some pretty narrow switchbacks but nothing crazy if you take your time. Following that is where the dirt begins and it’s fun. Small little town coming down the mountain but got lots of waves. Lots of gorgeous scenery and some waterfalls.
Victor Berber
May 17, 2025
Open
Ronald Silvey
May 13, 2025
Open
Very easy trail some narrow areas with steep drops but nothing technical. The first half depending on what side you entered is 8-10 miles of mostly paved roads and private properties the back half by yankee bridge is dirt road with a few rocks and ruts nothing crazy. Easy relaxing drive in 2H didn’t need to air down. Beautiful river views with a gorgeous waterfall with slight fog in the early afternoon.
Bryce cooley
May 10, 2025
Open
First half at least is paved roads. Some nice sights and vegetation. Last half is dirt / slightly uneven road. May not do again but thankful for the sites we saw. Swimming area requires quite the descent to reach.
Dikran Diarian
Apr 05, 2025
Open
First time on the trail with a stock Tacoma TRD OR. Dry roads except for a few mud puddles if you want to have some fun. The first portion of the trail is on road, the second half is dirt and rocks, it was a fun bumpy ride. A few fallen trees which had been pushed over to the side, did not cause any issues. Mostly kept the car in 4x4. I saw 2 other cars there the whole time. The path does get narrow, but nothing that made us feel unsafe. Overall as someone new to off-roading, it was very manageable

Shirttail Canyon Trail can be accessed by the following ride types:

  • High Clearance
  • Full Width

Shirttail Canyon Map

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