Northwest of Spokane and Kettle Falls, there are 12 miles of dirt biking routes past Twin Sisters on old logging roads. These roads are quite deteriorated and are challenging for off-road motorcycle riders. There are great views of the Kettle Range.
The trailhead is located 16 miles northwest of Kettle Falls. From Kettle Falls, head west on SR20. Turn right heading north on FS2030. Turn right on FS9565 to the trailhead parking area.
Note: the northern-most track is the Twin Sisters Trail. The southern track is the Mack / King Mountain Trail. As of March 2008, these trails have become quite overgrown and are rarely maintained.
Overall, Twin Sisters is the 19th most popular dirt bike trail of all 38 dirt biking rides in Washington.