Area Status: Open
Trail access is affected by recreational gate closure on Dec 1st – April 1st annually. Please see our Roads Table for current information.
This trail enters the Mt Hood Wilderness. The highest part of the trail enters alpine terrain on Zigzag Mountain’s ridgeline. A long loop can be done by combining Horseshoe Ridge Trail with segments of Zigzag Mountain Trail #775 and Cast Creek Trail #773.
The trail begins at Cast Creek, Horseshoe Ridge, Sandy River Trailhead near Riley Horse Camp, and ends at Trail #775. The trail begins in what is known as the “Old Maid Flat” area.The ¾ mile of this trail is relatively flat.
The bridge ¾ mile into the trail at Lost Creek is damaged and is currently UNUSABLE.
At Lost Creek, there is an area for stock to ford. The trail begins a steady 3.9 mile climb along Horseshoe Ridge. The trail ends as it breaks out of treeline on Zigzag Mountain.
Trail Description and Map (PDF File)
At a Glance
Accessed from Cast Creek, Horseshoe Ridge, Sandy River Trailhead located within Riley Horse Campground on Forest Road #1825-380.
From Portland, OR - follow U.S. Hwy 26 for 17.5 miles east of Sandy to the community of Zigzag. Turn left (north) at E Lolo Pass Road (Forest Road 18) and follow it for 4 miles. Turn right at Muddy Fork Road (Forest Road 1825) and continue for 0.7 mile. Take the first right onto Muddy Fork Road (Forest Road 1825) and travel 0.5 mile to another right turn at Forest Road 1825-380. Travel another 0.1 mile before turning right into Riley Campground. Continue through the campground to the parking area. The trail starts on the southwest side of Forest Road 1825-380, 150 feet from the intersection with Forest Road 1825, and 500 feet before the entrance into Riley Campground.