Skip to content

Colonial Creek South Campground

Wooden campground sign in front of a cabin.
Entrance station for Colonial Creek Campground on Diablo Lake. · NPS Photo
Campsites
93
How to get a site
Reservations
Max RV length
36 ft
Max trailer length
36 ft
Fee
$24 / night
Coordinates
48.6870, -121.0940
Map loads as you scroll

48.6870, -121.0940 · Park boundary: National Park Service

Private beta · Free to join

Make Colonial Creek South Campground part of the drive.

Byway plans around your taste, verified places, real weather and opening hours — then opens every leg in Google Maps with one tap.

Private beta · Free to join · No card · Invite when a spot opens

Reservation details

Colonial Creek South Campground is a remote, yet busy campground nestled in old growth forest on the south side of State Route 20 near mile marker 130.Ten walk-in, tent-only sites are available first-come, first-served in the winter (sites 64-73). Sites may be difficult to access in winter. Reservations required late May to September. Recreational opportunities include a fully accessible fishing pier and boat launch on Diablo Lake, as well as hiking opportunities on Thunder Creek and Thunder Knob trails.

Every day
All Day

Most of the campground is open seasonally with reservations, usually late May to mid-September. Colonial Campground South campsites 64-73 are open during winter months with no water, services, or fees. Vault toilets available. Snow may be on the ground during winter months and sites may be difficult to access.

  • Winter Colonial Creek South Campground · Sep 15, 2026 – May 20, 2027 · Closed
19
Tent-only
19
Walk or boat in
3
Other
90 reservable
Colonial Creek Campground Summer Reservation Fee$24

Reservations can be made up to 6 months or 7 days in advance at www.recreation.gov or by phone at (877) 444-6777. Check out time is 12:00 pm on the day of departure.

Colonial Creek South Campground Fall First-Come, First-Served Fee$24

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 until October when potable water and trash services are provided.

Colonial Creek South Campground Winter FeeFree

Ten sites #64 - #73 (walk-in, tent-only) remain open during winter season from October to late May with no water, services, or fees. Vault toilets are available. Please carry out all trash. Snow may be on ground during winter months.

Reservations are required during the peak season for all campgrounds from late May through early September of each year. Campsite reservations are released in two different booking windows of 6 months in advance or 7 days in advance. Campsites can be reserved online or over the phone. To reserve campsites over the phone, call recreation.gov at (877) 444-6777. For changes to reservations contact the park at 360-854-7301.

Amphitheater
Yes - seasonal
Drinking water
Yes - seasonal
Dump station
Yes - seasonal
Food storage lockers
Yes - year round
Host on site
Yes - seasonal
Toilets
Flush Toilets - seasonal · Vault Toilets - year round
Trash & recycling
Yes - seasonal
Camp store
No
Cell reception
No
Firewood for sale
No
Ice for sale
No
Internet
No
Laundry
No
Showers
None
RVs
Allowed · up to 36 ft
Trailers
Allowed · up to 36 ft
Access roads
Paved Roads - All vehicles OK
Classification
Developed Campground
Wheelchair access

There are three wheelchair accessible sites available in Colonial Creek North and South Campgrounds.

ADA facilities

There are three ADA accessible sites available in Colonial Creek North and South Campgrounds.

Fires & stoves

Gathering firewood is prohibited. Firewood is available outside the park.

Located off of SR 20 at mile post 130. Twenty miles (40 km) east of Marblemount, 63 miles (101 km) west of Winthrop.

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.

Campsites are considered occupied only when fee has been paid. Payment must be paid within 24 hours of leaving the campsite or reaching cell service. Sites may not be reserved for others. Maximum of two vehicles, eight people and three tents per site. Vehicles and tents must not be placed on or impact vegetation. Check-in time is 2 pm on day of arrival. Checkout time is 12 pm on day of departure. Quiet hours are from 10 pm to 6 am. Generator hours are from 8 am to 8 pm. Camping is limited to no more than 14 days from July 1 to September 1 and no more than 30 days in a calendar year. Do not feed or tease wildlife - keep your food and other appealing items in your vehicle or bear box at all times except when eating or using them. Pets must be on a leash no longer than 6 feet or confined at all times. Fires are only permitted in designated fire grates and must be attended at all times. Firewood collecting is prohibited; please purchase firewood from a local vendor.

Colonial Creek Campground is located in old growth forest at the base of the impressively glaciated mountain and on the shore of Diablo Lake. Most sites are in thick forest, but some sites have views of the lake. The roads are paved. Campsites generally have a picnic table, bear box, and one or two flat tent pads.

AddressColonial Creek Campground · Sedro-Woolley, WA 98284
Official pageOn nps.gov →

Location, hours, and facility details confirmed against the National Park Service registry.

National Park Service registry

Checked 2026-08-04

Can you reserve a campsite at Colonial Creek South Campground?

Yes. Colonial Creek South Campground in North Cascades National Park has 90 sites that can be reserved in advance.

How many campsites does Colonial Creek South Campground have?

Colonial Creek South Campground in North Cascades National Park has 93 campsites.

What is the maximum RV length at Colonial Creek South Campground?

Colonial Creek South Campground publishes a maximum RV length of 36 feet. Longer rigs will not fit its sites.

How much does it cost to camp at Colonial Creek South Campground?

Colonial Creek South Campground in North Cascades National Park charges between Free and $24 per night, depending on the site type.

Are there showers at Colonial Creek South Campground?

No. Colonial Creek South Campground in North Cascades National Park does not list showers.

Is there drinking water at Colonial Creek South Campground?

Yes. Colonial Creek South Campground in North Cascades National Park lists drinking water: Yes - seasonal.

Is there cell service at Colonial Creek South Campground?

No. Colonial Creek South Campground in North Cascades National Park does not list cell reception.

Is there a dump station at Colonial Creek South Campground?

Yes. Colonial Creek South Campground in North Cascades National Park lists dump station: Yes - seasonal.

Is Colonial Creek South Campground wheelchair accessible?

Colonial Creek South Campground in North Cascades National Park: There are three wheelchair accessible sites available in Colonial Creek North and South Campgrounds.

Visitor centers in North Cascades · 4

Drive to Colonial Creek South Campground

Byway plans the scenic way in — real places, real weather, every stop verified. Zero hallucinations. Google Maps for turns. Byway for soul.

Plan this drive →Private beta · Free while in beta