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Trail Description
E-bikes NOT allowed on Duodenum
The Duodenum is a lollypop out-and-back ride off of Tyler’s Traverse with an intestine-like hillside on the loop portion. 20 or so heavily banked corners will test your slalom skills.
The loop portion of Duodenum has recently been designated as a one-way trail — which is ridden clockwise.
This trail is maintained by Central Oregon Trail Alliance.
Trail Photos
CONNECT WITH BEND TRAILS
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The logging impacts start a fair bit further north than the trail closure indicates. You can’t connect with Royal Flush on single track.
5-17-25. Winter logging operations have destroyed the trail. Unrideable
5-12-25 A lot of snow still
Closed due to Fire.
Clear
The lone tree on Duodenum is gone. I also reverted a short section of trail from the road to the old trail before the logging.
Rode/hiked the entire counterclockwise loop May 15. Many snow patches and about 4 trees down that will require a chainsaw.
Small tree across the link from the Tyler’s climb to Royal Flush. About 1/4 mile from the Royal Flush post.
Rode on May 17th. About a dozen snow drifts of varying size, most less than a bike length, all rideable, no deadfall.
From half way up to the top lots of large snow patches. I suggest picking the side you want to ride down and head up that way. Turn around when the patches get thick and un-rideable.
rode last night and large tree was down on south side of lollipop
Cleared ~15-20 trees on the lollipop stem. Didn’t have time or fuel to go any further but my guess would be there is more deadfall further up
Great trail, no trees down, but be advised of heavy detritus build-up from the last storm. Inches thick in many places, needs some folks to go ride it off!
Deadfall cleared.
Did my part this morning. Still thick with pine needles from the storm.
Riding great. A couple of small snow patches on the switchbacks but should be gone within a few days. One 14” tree down at chest height about a half mile up the loop part going clockwise.
Fun little trail that I’ve never taken the time to ride until today. Tight turns, good berms, and the dirt was in good condition. Lots of pine needles this time of year.
Riding well and full open… thank you for logging it out.
Fun little ride, trail seemed in good condition to me.
Finished logging out Duodenum. It is tree free at the moment.
1 tree down (easy to get around) and then at least 3 trees down a half a mile further start at about 1/3 of the way up the trail going counterclockwise.
The downhill side switchbacks (going cw) are very sandy and somewhat blown out.
Removed reported tree on the Duodenum.
A 10″ tree is down about 1/4 mile from Tyler’s,
The Duodenum is cleared of deadfall. The are a few spots with snow but they are rideable especially on a fat bike.
I can’t believe I got first tracks after all this time. 0-3” cold frosty crusty snow. All rideable fun fun fun on the fatbike.
Deadfall cleared and perfect dirt.
I changed status to “Deadfall” but that only reflects a single tree down. Note it comes during downhill section, so watch it. Conditions are otherwise fairly good with expected sandy spots.
Please alert COTA: down tree is 2.5 miles into trail (going clockwise) and most likely requires chainsaw
Cota trail adopter Bruce cleared tree today. By hand!
rob and bruce finished clearing D today and did some maintenence
Just a couple trees still down but don’t let that stop you. The larger one is near the end of the lolipop stick and requires a dismount climb over unless your last name is MacAskill. The other one is in the snake section and can somewhat be ridden around although the soil at the trees base is super sketchy.
clear of snow, about a dozen trees down, fun slippery pine needles!
And another smaller tree a little bit after you start the CW loop. If you like floating over a carpet of pine needles, this is your trail!
One big tree down about a mile from the start (from Tyler’s). The tread is perfect.
Trail is clear of trees and branches. Needs a little work but rideable per COTA
Duodenum is completely clear and ready to ride, fresh tread!