Skip to main content
Mount Thielsen Trail route map
Difficulty: ExpertOut and Back

Mount Thielsen Trail

Idleyld Park, Oregon

9.2 mi

Distance

4,590 ft

Elev. Gain

5h 3m

Est. Time

Out & Back

Route Type

Expert

Difficulty

About This Trail

Mount Thielsen Trail is an out-and-back trail in Douglas County, Oregon. It is 9.2 miles long and gains 4,590 feet. The nearest town is Beaver Marsh, Oregon, about 16 miles away in a straight line.

From the trail data on this page.

Trail Conditions

Trail Conditions

Unknown

We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.

No recent condition reports. Be the first to share what you see on the trail.

Elevation Profile

Min:1,658 ft
Max:2,737 ft
Gain:1,399 ft
Loss:1,399 ft
Elevation profileA line rising and falling between 1,658 ft and 2,737 ft across 9.2 mi along the route, drawn from start to end.1,658 ft2,018 ft2,377 ft2,737 ft0.0 mi2.3 mi4.6 mi6.9 mi9.2 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi1,658 ft
High point4.2 mi2,737 ft
End9.2 mi1,658 ft

Trail Details

Route Type
Out & Back

Official sources & verification

Verify before you go

Where it is

Nearest town:
Beaver Marsh, OR · about 16 mi away
County:
Douglas County, OR

Nearest town and county from U.S. Census Bureau place records and county boundaries.

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this trail using the links above before you go — you are responsible for compliance. Last verified by us: May 23, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

Reviews

No reviews yet

Be the first to share your experience and help others plan their visit.

Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

Spot an error in our data on Mount Thielsen Trail?