Conditions:Duncan Creek-20250315235635

Latest:	15 Mar 2025 (2 mos ago)

Reported by:	Fil (34 reports), K arc (376 reports)
Quality:	Great
Waterflow:	High
Wetsuit:	Drysuit
Water temperature:
Difficulty:	Special challenges
Time:	4 hours

Team: 3 people

Trip report URL:

Comments: Duncan becomes a different animal in high flow. Strong current and swiftwater features appear. Adequate thermal protection essential. Good fun for an experienced team.

All condition reports

Date	Quality	Waterflow	Wetsuit	Difficulty	Time	Team	Reported by
7 Jun 2025	Ok	Low	Full wetsuit	Easy	5 hours	7 people Expert to Brand new	Treyshoe (34 reports)
Comment: Water levels are continuing to drop, with some of the jumps starting to get a little shallow.
30 May 2025	Good	Moderate Low	Thick wetsuit	Easy	4 hours	4 people Advanced to Expert	Treyshoe (34 reports)
Comment: Another fun training day in Duncan. Water levels are falling fast after our dry Spring.
17 May 2025	Good	Moderate Low	Thick wetsuit	Normal	4 hours	8 people Intermediate to Expert	Treyshoe (34 reports)
Comment: Training day in Duncan. Lots of fun catching falls and working on facilitating training new canyoneers.
11 May 2025	Great	Moderate Low	Full wetsuit	Easy	8 hours	2 people Beginner to Expert	Hendbc (3 reports)
Comment: First canyon ever, learned basic rigging systems and more with Dusty, perfect conditions
23 Mar 2025		Extreme					Briwellman (76 reports)
Comment: Flow check, the water was very high and loud with only a few boulders above the water. We hiked in and met another very experienced team on their way out. They said the water is too powerful and there are too many log strainers to run it. We agreed, so we only hiked it and took some pictures. The log jam area was totally flooded with full river flow around both sides of the logjam. With all the rain recently, Duncan is raging!
15 Mar 2025	Great	High	Drysuit	Special challenges	4 hours	3 people	Fil (34 reports),K arc (376 reports)
Comment: Duncan becomes a different animal in high flow. Strong current and swiftwater features appear. Adequate thermal protection essential. Good fun for an experienced team.
15 Dec 2024	Great	Moderate High	Drysuit	Special challenges	4 hours	4 people	K arc (376 reports)
Comment: High water conditions and very cold per recent snow. Installed new high water bolt at R2 to eliminate need to use the awkward tree anchor. Crux was the upper pool at R8, a swirling horizontal recirculation that took some effort to escape. Once one person was out, it was easy to assist the rest of the team. (Pool can also be bypassed by rappelling out of the water.) Exited above the big log jam. Duncan is super fun at this level, although teams should be experienced and have plenty of thermal protection.
9 Sep 2024	Great	Moderate Low	Thin wetsuit	Normal		3 people Brand new to Advanced	Triggerfish (62 reports)
Comment: Took two sibs on their first-ever canyon here, and it was perfect! Intense enough to push them without terrifying, and the place is just beautiful.
19 Aug 2024	Good	Low	Thin wetsuit	Easy	5 hours	5 people Brand new to Advanced	Treyshoe (34 reports)
Comment: Low flow but fun day taking friends for their first canyon trip. We exited at the big log jam before the creek crossing and did not do the lower section.
7 Jul 2024	Great	Low	Thin wetsuit	Easy	4 hours	2 people Beginner to Intermediate	PsychoWard (37 reports)
Comment: Fun day out in Duncan on a hot day. A couple anchors had loose hangers that need tightening. Webbing may need replacing soon on a couple anchors, but still in good shape.
24 Jun 2024	Great	Low	Full wetsuit	Normal	5 hours	6 people Beginner to Advanced	Briwellman (76 reports)
Comment: Great training day for Mazamas students! The flow was surprisingly low.
18 May 2024	Good	Moderate Low	Full wetsuit	Normal	4 hours	2 people	K arc (376 reports)
Comment: Half-day run of Upper Duncan. Water levels have dropped significantly, but still cold. Tightened a number of loose bolts.
28 Apr 2024	Great	Moderate High	Drysuit	Normal		4 people	K arc (376 reports)
Comment: Water is cold, but currently at fun sporty levels. Teams should be experienced. Ran most of the upper section, jumped out before the big logjam, and went down to descend the Moss Chasm. R5 looked alarming, but isn't deep. Water levels should be dropping off soonishly -- go get it while it's good!
20 Apr 2024	Good	Moderate	Thick wetsuit	Normal	4 hours	7 people Beginner to Advanced	Sri (30 reports)
Comment: Duncan is at a fun moderate flow. The water was very cold though,expected for a spring canyon in Washington. We all decided to exit early where the trail crosses the creek as many people were uncomfortably cold. Bolts are in good shape. We replaced the webbing in a few places.
25 Nov 2023	Good	Moderate	Drysuit	Easy	4 hours	1 people Intermediate	TexasLorenzo (22 reports)
Comment: Waterflow was solid, anchors were solid, no jumps were done. Def want to return in higher flow, and warmer temps!! Youtube vid will be posted for this run***

...additional reports