Colonial Creek South Campground in North Cascades National Park is a remote, yet bustling campground nestled in old growth forest. Located on the south side of State Route 20 near mile marker 130, there are 94 campsites that are surrounded by forest and located on Diablo Lake.
Visitors can access several trails from within the facility, such as Thunder Knob Trail and Thunder Creek Trail. Colonial Creek South Campground is also close to several trails along State Route 20. Visitors can also go boating, fishing, and swimming (although the water is a chilly 43 degrees) on Diablo Lake. Bears do inhabit the area, so care should be taken when hiking, picnicking, or camping.
The campground is located on the southern side of State Route 20, with some campsites along the lakefront of Diablo Lake. The entire facility offers drinking water, flush toilets, garbage removal and some paved parking spaces, but most sites have uneven gravel parking. Each campsite offers a picnic table and campfire ring.
Diablo Lake and Ross Lake overlooks are within a short driving distance from the facility. Campers who wish to learn more about the area can attend interpretive programs at the North Cascades Visitor Center in Newhalem during peak season, or participate in a variety of tours.