In the foothills and mountains of the south rim of the Snake River Valley, south of Twin Falls, lie the Diamondfield Jack and Howell Canyon Snowplay areas.
The Diamondfield Jack area offers more than 200 miles of groomed and marked trails in 200-square miles of Sawtooth National Forest and Bureau of Land Management land. Both areas are easily accessible from Interstate 84 on Hwy. G3. Two 85-car plowed parking lots provide access and the forest service maintains a warming hut and heated rest rooms. The region surrounding Howell Canyon is similar to Diamondfield Jack and offers the same amenities. Contact the Twin Falls Ranger District for more information and maps.