4.7
(8499)
19,632
hikers
06:57
20.2km
1,100m
Hiking
Hike the difficult 12.5-mile Grass Ridge Trail in Frank Church-River of No Return Wilderness, gaining 3609 feet with Selway River views.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
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10.0 km
Highlight • Viewpoint
Tip by
20.2 km
End point
Way Types & Surfaces
Way Types
20.2 km
< 100 m
Surfaces
20.2 km
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Elevation
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Monday 1 June
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Max wind speed: 16.0 km/h
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This route was planned by komoot.
The Grass Ridge Trail is a challenging hike covering over 20 kilometers. Hikers should plan for approximately 7 hours to complete the route, depending on their pace and stops.
This trail is rated as difficult. Given its location within the Frank Church-River of No Return Wilderness, you can expect rugged and untamed terrain, typical of a remote wilderness experience. Prepare for significant elevation changes and potentially uneven surfaces.
A significant highlight along the route is the View of the Selway River. This offers a stunning vista of the river winding through the wilderness.
Yes, the route primarily follows the Grass Ridge Trail for its entire length. It also includes a section of the Selway River Trail, making up about 7% of the total distance.
Regulations for dogs in the Frank Church-River of No Return Wilderness can vary. Generally, dogs are permitted on trails but must be kept on a leash to protect wildlife and ensure a pleasant experience for all users. Always check the latest wilderness area rules before you go.
The Frank Church-River of No Return Wilderness, where this trail is located, typically does not require permits for day hiking. However, permits may be necessary for overnight stays or specific activities. It's always best to check with the local Forest Service office for the most current regulations before your trip.
Given its wilderness location and challenging nature, the best time to hike is generally during the warmer, drier months, typically late spring through early fall. This avoids snow and ice, which can make the trail impassable or significantly more difficult. Always check weather and trail conditions before heading out.
As the trail is in a vast wilderness area, you have the potential to see a variety of wildlife. Common sightings in such regions can include deer, elk, various bird species, and potentially larger mammals like bears or mountain lions. Always practice Leave No Trace principles and be aware of your surroundings.
Specific trailhead access points for remote wilderness trails like the Grass Ridge Trail can sometimes be challenging to find. It is located within the Frank Church-River of No Return Wilderness. We recommend consulting detailed topographical maps or contacting the local Forest Service district for precise trailhead locations and parking information.
For a difficult, 7-hour wilderness hike, essential gear includes plenty of water, high-energy snacks, sturdy hiking boots, navigation tools (map, compass, GPS), appropriate layers of clothing for changing weather, rain gear, a first-aid kit, and sun protection. Given the remote nature, consider bringing a headlamp and emergency supplies.
No, due to its 'difficult' rating, significant distance (over 20 km), and substantial elevation gain (nearly 1100 meters), the Grass Ridge Trail is not recommended for beginners or young families. It is best suited for experienced hikers who are well-prepared for a strenuous wilderness adventure.