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Twin Tunnels East Side via Historic Columbia River Highway route map
Difficulty: ModerateOut and Back
Historic Columbia River Highway State Trail/Oregon

Twin Tunnels East Side via Historic Columbia River Highway

Mosier, Oregon

3.7 mi

Distance

1,178 ft

Elev. Gain

1h 28m

Est. Time

Out & Back

Route Type

Moderate

Difficulty

About This Trail

Twin Tunnels East Side via Historic Columbia River Highway is an out-and-back trail in Historic Columbia River Highway State Trail, managed by the Oregon Parks & Recreation Department, in Wasco County, Oregon. It is 3.7 miles long and gains 1,178 feet. It is in or next to Mosier, Oregon.

From the trail data on this page. For conditions and closures, see official sources.

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:68 ft
Max:174 ft
Gain:359 ft
Loss:359 ft
Elevation profileA line rising and falling between 68 ft and 174 ft across 3.7 mi along the route, drawn from start to end.68 ft103 ft139 ft174 ft0.0 mi0.9 mi1.9 mi2.8 mi3.7 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi74 ft
High point1.7 mi174 ft
End3.7 mi74 ft

Trail Details

Route Type
Out & Back

Official sources & verification

Managed by Oregon Parks & Recreation Department

Verify before you go

Source of truth

Where it is

Nearest town:
Mosier, OR · in or next to town
County:
Wasco County, OR
Jurisdiction:
Historic Columbia River Highway State Trail · Oregon Parks & Recreation Department

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?

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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.

Nearby Trails

More trails near Twin Tunnels East Side via Historic Columbia River Highway
Mosier Plateau Trail

Mosier Plateau Trail

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TrailDifficulty: Moderate
Coyote Wall Loop Trail

Coyote Wall Loop Trail

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Old Ranch Road and Little Maui Trail Loop

Old Ranch Road and Little Maui Trail Loop

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Coyote Wall Long Loop

Coyote Wall Long Loop

7.5 mi
TrailDifficulty: Difficult

Old Ranch Road

3.2 mi
TrailDifficulty: Moderate
The Labyrinth to Coyote Wall Loop

The Labyrinth to Coyote Wall Loop

6.7 mi
TrailDifficulty: Difficult

Stay nearby

Campgrounds near this trail

More campgrounds

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