Bisected by two of Washington's major volcanoes, this 'sanctuary' route offers a high quantity of time to praise the views afforded by the trails on this route. The views are not evident at the beginning of this route as one has to earn his or her way into the alpine. The portion of trail that runs adjacent to the Lewis River and Quartz Creek offer plenty of chances to cool off. The northern portion has less opportunity to cool off, or collect water, so pack accordingly. Note: This IS as stupid hard route with a massive amount of climbing and descending. Few can undertake such a route in it's entirety!
Recommended direction is from South to North.
This is the longest route possible with continuous singletrack. If looking for a shorter ride, consider beginning from the upper Lower Lewis River / Quartz Creek trailhead and climbing North to the alpine burn area.
Rode NF29 to Dark Meddows to Juniper Ridge (South to North) and Tounge Mtn back to the car. The graph on my Android was backwards (or the start and finish dots are wrong) so all the ups were downs and the downs were up. Still super worth it if you like hike a bikes and a wicked descent into Tounge Mtn and Tounge Mtn itself.
It’s a steep and narrow moto trail that’s pretty much unridable uphill. I had to push my bike from behind since there was too much brush along the trail. The views are nice though and the lookout trail is fairly short. When going northbound take the lower trail and then go back to reach the lookout. I think it’s and easier option. But don’t have any illusions you are pushing either way.
Trail is clear and well trafficked by hikers up until crossing Snagtooth Creek, which is just before the junction with Quartz Creek Butte Trail #5B. From here the trail becomes increasingly steep and overgrown with many blow-down. Expect slow going and many hike-a-bike sections from Snagtooth Creek until reaching the trail's terminus at Boundary Trail #1 (I averaged less than 3mph on this section of the climb). If you are looking for a fast, rough, and rowdy descent, I highly recommend descending Summit Prairie Trail #2 which is a motorized trail and is currently clear of blow-down and brushed. It's a chill 4mi downhill road ride on FR90 from the bottom of Summit Prairie back to the Quartz Creek trail head.