Swampy-Dutchman Tr40 to Flagline Tr41

3D view of Dutchman Flat to Flagline Trail #41

Overall: 9

Aerobic: 6

Technical: 6

Steepness: 6

Flow: 8

Singletrack: 100%

The Swampy-Dutchman Tr40 - Flagline Tr41 ride is one of the great high summer Bend area loops, only limited by the mid-Aug Flagline Tr41 (Elk calving) access restriction.




Avg: 16.7mi



Elevation Change

Avg Ascent:2400'

Ascent Incline



Avg: 3.5hr






View of Flagline Trail 41

For those able to arrange a shuttle, the Dutchman Flat TH is also the starting point for the Mt Bachelor to Bend ride, traversing the Tumalo Tr25, Mrazek Tr32 and Phils Tr42 trail systems.

Consider the Swampy Lakes Sno-Park TH and the Dutchman Flat TH to be alternate trailheads.

The Swampy-Dutchman Tr40 to Flagline Tr41 loop ride, which is the main ride on this page, actually starts from the Swampy Lk Tr23 TH.

Starting from the Swampy Lakes Sno-Park TH creates a better ride profile than starting at the Dutchman Flat TH.

The Swampy Lakes Sno-Park TH is also the best starting point for the epic Swampy Lake Tr23, Metolius-Windigo Tr99, Flagline Tr41, Swampy-Dutchman Tr40 CCW Loop, covered on that page.

The Mount Bachelor to Bend ride can cross any terrain desired, but there are two routes which fit the terrain the best: The northern 24.8mi (1700' ascent) Mrazek Tr32 route or the 22mi (1750' ascent) Bens Tr50 route, depending on the desired terrain.

The Bens Tr50 route can turn into a tour of the area, by ending on COD Tr71, depending on the desired ride time.

Bachelor to Bend: Metolius-Windigo to Mrazek

Note: Flagline Tr41 is only open from Mid-Aug till it becomes snowed-in again, limiting the access to this ride.

TH: Ascend 2mi, past the Mount Bachelor nordic area to Flagline Tr41, then go left to Metolius-Windigo Tr99. Pass the Swampy Lake Tr23 intersection on the right at 7.9mi...but that's another ride.

9mi: Go right onto Mrazek Tr32 and ride to the Shevlin Park TH, or use Farewell Tr26 to connect to the Tumalo Tr25 system, then to Bens Tr50.

Directions: Trail starts at the Dutchman Flat staging area, across from Mt Bachelor. Alt TH: Swampy Lakes Sno-Park. View Larger Map. No Map?.

Dutchman Flat to Flagline Trail #41 Topo Map

Loop Directions

round the mountain

Dutchman Flat Area Topo Map

Note: Flagline Tr41 is only open from Mid-Aug till it becomes snowed-in again, limiting the access to this ride.

  • TH: From the end of the Swampy Lakes Sno-ParkView of Swampy Lakes Sno-Park TH
    View of Swampy Lakes Sno-Park TH
    parking circle, go on the left (western) trail, then bear left to remain on Swampy-Dutchman Tr40 and ascend to the Flagline Tie Tr41.1 2.7mi intersection on the right. This completes the first of three increasingly challenging (but moderate) ascents. Descend and pass a Cascades trail connector at 3.5mi on the left, then gradually ascend alongside Cascade Hwy before dropping into the Dutchman Flat TH.
  • 7.1mi: Cross the Dutchman FlatView of the Mount Bachelor Dutchman Flat TH
    View of the Mount Bachelor Dutchman Flat TH
    parking area and begin the Flagline Access Tr40.1 (western flank of Tumalo) ascent, trying not to be distracted by the many side trails along the way to Flagline Tr41. The Mount Bachelor XC Ski area consists of a maze of trails. The climb is more intense than the first two ascents, but still reasonably moderate.
  • 9.2mi: Go right onto Flagline Tr41 and ascend the remaining 600' along the northern flank of Tumalo Mountain, to the ride summit at 10.7mi. Descend past the Flagline Tie Tr41.1 intersection on the right at 13.5mi, to the Swampy Lake Tr23 intersection.
  • 14.8mi: Go right onto Swampy Lake Tr23 and return to the TH, or go left and around Swampy Lake, to Swede Ridge Tr52, then back on Swede Ridge Loop Tr8026 to the TH.




Bachelor to Bend: Flagline to Bens

  • Note: Flagline Tr41 is only open from Mid-Aug till it becomes snowed-in again, limiting the access to this ride. View of the Dutchman Flat Parking Area
  • TH: Ascend Flagline Access Trail 40.1 for 2mi to the Flagline Tr41 intersection. Go right and continue the ascent to the ride summit at 3.5mi, then descend to Swampy Lake Tr23. View of Flagline Access intersection with Flagline Trail 41
  • 7.6mi: Go left onto Swampy Lake Tr23 and go around the Swampy Lake shelter, bearing right onto Swampy Loop Tr23.2 and ride around the northern side of the swamp to Swede Ridge Tr52 at 8.3mi. Go left onto Swede Ridge Tr52 and descend the ridgeline to the Swede Ridge Shelter. The singletrack ends at FR100, near the Swede Ridge shelter. Go right onto FR100, then left onto Sector 16 Tr27.
  • 13mi: Sector 16 Tr27 turns into Bens Tr50. At the #29 intersection, go onto the Bens Whoops Tr50 trail and ride the wave, then continue on Bens Tr50 to the TH or go right onto Voodoo Tr46 at #17 intersection and explore other terrain.


Trail Index

This Ride

Flagline Trail 41, Flagline Access Trail 40.1, Flagline Tie Trail 41.1, Metolius-Windigo Trail 99, Swampy-Dutchman Trail 40, Swampy Lake Trail 23, Swampy Loop Trail 23.2, Swede Ridge Trail 52


Bridge Creek Trail 24, Broken Top Trail 10, Green Lakes Trail 17, Mount Bachelor Trail, Todd Trail 34, Tumalo Mountain Trail 38

XC Ski

Big Meadow Trail 52, Knotweed Trail 30.1, Lower Loop Trail 40.1, Lupine Trail 34, Manzanita Trail 36, Meissner Snowshoe Trail 91, Nordeen Loop Trail 31, Petes Way Trail 56, Soda Creek Trail 11, Swampy Snowshoe Trail 92, Tangent Loop Trail 30, Todd Lake Trail 54, Todd Ridge Trail 55, Water Tower Trail 53, Wednesdays Trail 32


Devils Lake Campground, Sparks Lake Campground


Trail Rankings

Ranking consistently applied to all of the listed trails.

  • Overall Rating: Ride quality and challenge
  • Aerobic: Ascent challenge
  • Technical Difficulty: Terrain challenge
  • Steepness: Average incline
  • Flow: Uninterrupted riding
  • Elevation Change: Total elevation gain
  • Ride Difficulty: Terrain challenge






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