Details
Colonial Creek Campground, Sedro-Woolley, WA, 98284
Lat:48.691
Lng:-121.101
Content provided by
National Park ServiceLast Updated: September 5, 2026
Campground
Colonial Creek North Campground
National Park ServiceCampground
Colonial Creek Campground, Sedro-Woolley, WA, 98284
National Park ServiceLast Updated: September 5, 2026
Colonial Creek North Campground is a remote, yet bustling campground nestled in old growth forest. Located on the north side of State Route 20 near mile marker 130, there are 41 campsites that are surrounded by forest and located on Diablo Lake. Recreational opportunities include a fully accessible fishing pier and boat launch on Diablo Lake, as well as hiking opportunities for various abilities on Thunder Creek and Thunder Knob trails.
Colonial Creek North Campground is open seasonally, usually late May to mid-September.
The best weather for visiting the North Cascades generally occurs between mid-June and late September. Summer daytime temperatures average in the 70s F. Snow is off most trails by mid-July. Autumn and Spring are popular for color and wildlife. Storms are common: always be prepared for a few days of rain and wind. The east side of the Cascade Mountains (Lake Chelan National Recreation Area) is drier and warmer in the summer than the west side. Summer temperatures at Stehekin reach the 90s F.
Trash & Recycling Collection
Toilets
Amphitheater
Staff or Host On-Site
Potable Water
Food Storage Lockers
Located off of SR 20 at mile post 130. Twenty miles (40 km) east of Marblemount, 63 miles (101 km) west of Winthrop.
Colonial Creek North Campground Reservation Fee
Reservations can be made up to 6 months or 7 days in advance at www.recreation.gov or by calling (877)444-6777. Checkout time is 12:00 pm.
Colonial Creek North Campground First-Come, First-Served Fee
Fee is per site per night; fees are paid through pay.gov at tinyurl.com/NOCACamping. Campsite occupancy limits include a maximum of 2 vehicles, 8 people, and 3 tents. Check out time is 12 pm on day of departure. Campsites are first-come, first-served once reservations end the first week of September and until the campground closes for the season.
Wheelchair Access
There are three wheelchair accessible campsites available in Colonial Creek North and South Campgrounds.
RV Allowed
Yes
RV Information
This campground is not large RV friendly. Large RVs can better be accommodated in Newhalem Creek Campground sites.
RV Maximum Length
25
Trailer Maximum Length
25
ADA Information
There are three ADA accessible campsites available in Colonial Creek North and South Campgrounds.
Trailer Allowed
Yes
Access Roads
Paved Roads - All vehicles OK
Classifications
Developed Campground
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