Sunnyside Campground is located along the southeast side of Cougar Reservoir at 1,700 feet in elevation. A large grove of conifers provides shade to these campsites. Motorhomes and trailers not recommended due to the steep entrance into the campground.
Recreation
Hiking in the area is outstanding in nearby Three Sisters Wilderness, along Rebel Creek. Hikers will enjoy exploring other trails including the French Pete Trail, Box Canyon Trail, Indian Ridge Lookout, and several day hikes within the Cougar Recreation Area. After a fun day on the lake, relax and enjoy Terwilliger Hot Springs, a day use area along Rider Creek.
Facilities
The campground offers vault toilets and garbage collection. Individual campsites include a fire ring and picnic table. Easy access to the lake is possible from this scenic location. There is no water available, campers will need to bring enough for the duration of their stay.
Natural Features
Situated near the South fork of the McKenzie River on the Willamette National Forest, Cougar Reservoir is part of the Cougar Recreation Area. Wildflower and wildlife viewing are abundant.
The facts
Season: April – September — USDA Forest Service, Aug 24, 2026
13 bookable sites
Vehicles up to 21 ft
Up to 8 people per site
Loops: SUNNYSIDE, Sunnyside
Site types
8 Tent Only Nonelectric
5 Standard Nonelectric
Amenities
✓ Campfires allowed
✓ Fire pits
✓ Picnic tables
✓ Shade
✓ Pets allowed
Not recorded upstream: electric hookups, water hookups, sewer hookups, grills.
From Blue River, travel 4 miles east on Hwy 126 to Aufderheide Drive (FS road 19). Continue on Aufderheide Drive for 9.5 miles; turn left on FS road 1900-500 for .25 miles.
1991–2020 averages from the nearest NOAA station, 5 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.
Map
More photos
Member photos
Common questions about Sunnyside Campground
Can you reserve a site at Sunnyside Campground?
Yes, Sunnyside Campground is reservable through Recreation.gov.
How many campsites does Sunnyside Campground have?
13 sites.
What is the maximum RV length at Sunnyside Campground?
21 ft. That is the longest vehicle the sites here are recorded as taking; individual sites may be shorter.
Are pets allowed at Sunnyside Campground?
Yes, pets are allowed at Sunnyside Campground.
Are campfires allowed at Sunnyside Campground?
Campfires are allowed at Sunnyside Campground. Check for a current fire restriction before you go.
Also listed by
Sunnyside Campground also appears in other federal recreation data. Facts below are matched by name and location, not confirmed by Sunnyside Campground's operator.
USDA Forest Service — data as of Aug 24, 2026
Single Campsites - $19 per night
Extra Vehicles - $10 per vehicle, per night
Day Use - $10 per vehicle, per day
Restrictions:
Camping is restricted to developed campgrounds in the Cougar Recreation Area
Camping is not allowed more than 14 days in a 60 day period.
Check-in time: 2:00 pm or later. Check-out time: 1:00 pm
Use of chainsaws in the campground is prohibited
Dogs MUST be on leash at all times within the campground
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