Uproute Extendo Loop is a 4.1 mile loop trail located near Corvallis, OR and is only recommended for very experienced adventurers. The trail is primarily used for hiking, trail running, horses, and mountain biking and is accessible year-round. Dogs and horses are also able to use this trail.
Year round hike on gravel road and single track with 800 ft of climb. From the gate follow the 600 road to the "Y" with the 6020 and take a left onto the 6020 road. Follow until it ends and the Uproute trail begins where you'll go through five tight switch backs to the top of the trail at the junction of Extendo (on your right) and the 680 road (straight ahead) and Endo (unofficial trail) on your left. Now you start back downhill on the Extendo Trail which is a maintained trail that winds through the forest and back down to the 6020 road. This trail is open year round to hikers and only April 15 to October 31 (depending on the rains) for bikers and horses. But it can be muddy in spots in the winter. Follow the 6020 back to the 600 road and follow it back down to the gate and the parking long. This hike can be done in either direction.
Great trail and a great hike. If you take the loop to the right at the beginning, its a pretty rough elevation gain. After that the trail will be a gentle downslope the rest of the way, so that's nice. Hiking shoes and plenty of water recommended. Dogs are allowed but need to be kept away from the creek (OSU research). I've only hiked this trail in the summer where it's dry, but it looks like it could get pretty muddy in the winter. All in all, a great afternoon hike. 2 to 2 1/2 hours.
We did this hike in the afternoon and most of the hike was shaded. I really loved the smells on this hike, nothing quite like an Oregon forest. The start of the hike really ascends and the total ascend/descend of the route we took (I loaded it into the tracks section) was 1,334 ft. We saw two cougar siting posters on the trails, which was exciting for my 10-year old son, but did not see any predators. Also, in the 7.5 miles we came across very few people, most were near the end.
I plan on doing this hike again as it is close and is a pretty good workout.
A shady trail, steep for a while if you take the extendo shortcut. Walk back on Patterson road 600. Well marked, with many options for routes, some longer, some shorter. Maps don't show all the trails well, but they are well maintained. My route had 752' elevation gain before turning back on Patterson.