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Routes
Mountain biking trails
United States
Idaho
Custer County
Sawtooth National Recreation Area

The Grinder Trail – Big Wood River loop from Big Wood River

Hard

4.7

(9172)

16,468

riders

The Grinder Trail – Big Wood River loop from Big Wood River

03:29

34.1km

760m

Mountain biking

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is right next to a parking lot.

Last updated: March 24, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Sawtooth National Recreation Area

Waypoints

A

Start point

Parking

Get Directions

1

12.3 km

The Grinder Trail

Highlight • Trail

Guess where the name comes from? Yes, challenging climbs are not uncommon here. This trail is part of the Annual Gravel Grinder bike race. For more information, look here: twistedturtleracing.com/grinder

Tip by

2

13.0 km

Smooth Gravel Road

Highlight • Trail

Smooth gravel road (FSR 189) that connects the Galena Lodge parking lot with the northern part of the Grinder Trail. It is also a great bail-out option if you are …

Tip by

3

28.1 km

Galena Lodge

Highlight • Mountain Hut

This is a great place for a stop. Refuel you energy with great food an enjoy your stay either inside in the cosy lodge or outside on the beautiful terrace. …

Tip by

4

32.2 km

Big Wood River

Highlight • River

The Big Wood River is 137 miles long and flows into the Malad River. It popular with both anglers and rafters.

Tip by

B

34.1 km

End point

Parking

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Way Types & Surfaces

Way Types

21.8 km

12.1 km

114 m

< 100 m

< 100 m

Surfaces

18.9 km

7.73 km

7.39 km

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (2,470 m)

Lowest point (2,150 m)

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Weather

Powered by Foreca

Today

Thursday 11 June

16°C

-2°C

0 %

Additional weather tips

Max wind speed: 11.0 km/h

to get more detailed weather forecasts along your route

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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