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Cougar Mountain Loop Trail route map
Difficulty: ExpertLoop
Washington

Cougar Mountain Loop Trail

Renton, Washington

21.4 mi

Distance

6,699 ft

Elev. Gain

9h 46m

Est. Time

Loop

Route Type

Expert

Difficulty

About This Trail

Cougar Mountain Loop Trail is a loop trail in King County, Washington. It is 21 miles long and gains 6,699 feet. It is in or next to Newcastle, Washington.

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.

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Elevation Profile

Min:69 ft
Max:623 ft
Gain:2,042 ft
Loss:2,042 ft
Elevation profileA line rising and falling between 69 ft and 623 ft across 21.4 mi along the route, drawn from start to end.69 ft254 ft438 ft623 ft0.0 mi5.4 mi10.7 mi16.1 mi21.4 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi151 ft
High point12.3 mi623 ft
End21.4 mi151 ft

Trail Details

Route Type
Loop

Official sources & verification

Verify before you go

Where it is

Nearest town:
Newcastle, WA · in or next to town
County:
King County, WA

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

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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 Cougar Mountain Loop Trail

Heritage Trail

0.1 mi away

Difficulty: Easy0.4 mi102 ftelevation gain Point to Point
Newcastle Highlands to De Leo Wall Loop

Newcastle Highlands to De Leo Wall Loop

0.3 mi away

Difficulty: Moderate3.6 mi1,358 ftelevation gain Loop
Newcastle East Cross Town Trail

Newcastle East Cross Town Trail

0.3 mi away

Difficulty: Moderate2.5 mi902 ftelevation gain Loop
Terrace Trail

Terrace Trail

0.3 mi away

Difficulty: Easy364 ftelevation gain Out & Back
Newcastle Highlands Trail

Newcastle Highlands Trail

0.4 mi away

Difficulty: Easy2.1 mi351 ftelevation gain Loop
May Creek Trail

May Creek Trail

0.5 mi away

Difficulty: Moderate2.5 mi505 ftelevation gain Out & Back

Stay nearby

Campgrounds near this trail

More campgrounds

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