About this trail
Grass Mountain (Off 257) is a 2.2 mile moderate trail at Payette National Forest OHV in Idaho. The mapped route runs from 45.1725, -116.2605 to 45.1648, -116.2490. It climbs about 1,007 ft, topping out at 6,394 ft. It is managed for motorcycle and ATV use year round. Route geometry comes from the US Forest Service Trails dataset.


