Grizzly Mountain Trail System – Crooked River National Grasslands, Oregon – Moquistang; one little mustang who does it all.

Grizzly Mountain Trail System – Crooked River National Grasslands, Oregon

Jun 29, 2026

June 29, 2026

Submitted by: Tess Buchannan, sharing on behalf of PNER

Ready to ride all day? Want to get a lot of miles in? Grizzly Mountain Trail system located in Central Oregon – offers over 100 miles of trails throughout the Crooked River National Grasslands and beyond. Enjoy wide open views, spring wildflowers, a faster pace and the iconic cascade mountains on the horizon. Perfect for endurance riders, shoulder season riding or someone who just wants to wander the entire day.

Trail Stats:

100+ mile trail system
Elevation Gain: ~1,600 feet
Elevation Loss: ~1,100 feet
Max Elevation: 3,500 feet
Difficulty: Moderate
↗ What does this mean?
Footing: Foot varies significantly – some stretches are on jeep roads, some sections are single track trails, lots of rock!
Hoof Protection: Shoe/bootes HIGHLY recommended – very rocky.

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← Explore more trails in the Central Oregon area

Facilities: Starting points include Ramrock Springs, Scales Corral, Cyrus Horse Camp, Grey Butte, and Henderson Flats.

Water Sources: Cyrus Horse Camp may have stock water at times but due to cattle grazing operations and other factors it may not be on. There are various stock tanks out on the trails.

Trail Info: This trail system includes extensive trails in the Crooked River National Grasslands, managed by USDA FS. The trails are not all well flagged, although some are! This is rangeland – there may be gates to open and close behind you to keep the cattle on their pastures. Water is limited. Barbed wire is possible on the trails. There is a huge range of terrain as you cover ground out here – rocks, down trees, gravel, and more!

Trail Challenges: Steep trail, steep side cliffs, cliffs, bikes, hard to navigate trail, rocky terrain, highway crossing, no shade/sun exposed, poor signage.

Permits: None but be aware that the central point of the GPX tracks is a private property site that is used by endurance camp; this is NOT the spot to park your rig.

Backcountry Sites: Not suitable for backcountry camping.

Cell Service: Verizon – good cell service for most of the loops, but some dead spots.

Fuel: Love’s Travel Stop – 1678 US-97, Madras, OR 97741

GPX Files:
OHT: Grizzly-Coyote Butte Loop
OHT: Grizzly-Warner Loop
OHT: Grizzly-Grizzly Loop
OHT: Grizzly-Tribby Loop
OHT: Grizzy-Lithgow Springs Loop
OHT: Warner-Cole Loop
OHT: Cole Loop Trail
OHT: Cyrus Horse Camp to Smith Rock
OHT: Sunset Loop
OHT: Austin Creson Viewpoint

Maintained By: Unknown

Directions:
Rimrock Springs: From Madras, Oregon: Take Highway 26 south for approximately 9 miles. Rimrock Springs Trailhead will be on your left.

Scales Corral: From Madras, Oregon: Head south on Hwy 26 for approx 12 miles. Turn right onto Laurel Lane/ Haystack Drive. Continue for approximately 2.5 miles. Scales Corral Trailhead will be on your left.

Cyrus Horse Camp: From Hwy 97: Exit Norris Lane and go east approximately 2.5 miles. Turn right on Springer Rd (Forest Service Road 5740). Turn left onto Hagman Rd (Forest Service Road 5750) and proceed approximately 1 mile. Cyrus Horse Camp will be on the right.

Grey Butte: From Madras, Oregon: Head south on Highway 26 for approximately 15 miles. Turn right onto Forest Service Road 7960 (Lone Pine Road). Follow for approximately 0.25 miles. Turn right onto Forest Service Road 57. Follow Forest Service Road 57 for approximately 3.3 miles. The trailhead is on the left side (south) of the road across from the apple orchard at the old McCoin homestead. The orchard is ringed with poplar trees.

Henderson Flats: From Madras, Oregon: Drive south on Hwy 97 for 13.0 miles. Turn left on Norris Lane and travel east for 2.3 miles. Another option would be to drive south on Hwy 97 for 14.9 miles, then turn left on Park Lane and travel east for 2.3 miles.

Resources:

Note: These maps heartily need updates! Other GPX routes are extra welcome. Please email to adventure.equines@gmail.com if you’d like to share a track for fellow trail riders!

Crooked River National Grassland Download

Maps: