Frost Jeep Trail #4W310

This 4WD/ATV trail in the Taneum Manastash Area goes from Forest Road 3100 to the Frost Mountain Lookout site.

This short out-and-back trail climbs steeply from road 3100 and ends at the Frost Mountain Lookout. Loose rocks toward the top make this trail challenging even in dry conditions. The view from the top is worth the challenge only if the trail is dry. Do not attempt to wheel or ride if the trail is wet. The descent is steep and treacherous.

At a Glance

Operational Hours: Seasonal motorized closure in effect yearly snow fall through June 15. If conditions permit, this trail may be opened to motorized use prior to June 15 and will be posted open at that time both on the ground and on this site. 
Open Season: Summer - Summer
Best Season: Summer
Busiest Season: Summer
Closest Towns: Ellensburg

General Information


From I-90 Exit 101, travel south and southeast onto Thorp Highway for 2 miles. Turn right onto Cove Road. Follow Cove Road to the junction with Manastash Road and turn right and follow Manastash Road to the end of the pavement. Continue on Forest Road 3100 past Riders Campground. Stay on the 3100 and follow the signs toward Quartz Mountain.  4WD310, Frost, will be located on the north side of the 3100.

Recreation Map

Map showing recreational areas. Map Information


Day Hiking


OHV Trail Riding

Difficulty Level: More Difficult

Recreation Areas

Recreation Activities


  Area/Length : 
1.0 miles

  Latitude : 

  Longitude : 

  Elevation : 
4800 ft. - 5700 ft.