Sumas Mountain Natural Area Adventures

Sumas Mountain Natural Area spans over 3,500 acres in Whatcom County, Washington, just east of Bellingham. The area is a prominent forested hill within the foothills of the North Cascades, rising to an elevation of approximately 3,500 feet. Its ecosystem primarily consists of Douglas fir, western red cedar, and western hemlock forests, providing habitat for black-tailed deer, Roosevelt elk, black bear, and a variety of bird species including owls and hawks. Historically, the mountain and surrounding lands were used by Native American tribes for hunting and gathering, and later by settlers for logging and limited agriculture. Today, it is managed to balance forest health, recreation, and wildlife protection. Outdoor enthusiasts visit Sumas Mountain Natural Area for hiking, trail running, mountain biking, and bird watching. The trail system connects numerous viewpoints offering expansive views of Bellingham Bay, the San Juan Islands, Mount Baker, and on clear days, the peaks of North Cascades and even Mount Rainier. Notable landmarks include the Sumas Overlook and the historic lookout tower site on the summit. The area’s well-maintained network of trails and relatively close proximity to an urban center make it a popular day-use destination for locals and visitors seeking outdoor experiences without traveling far from town. Its mix of natural beauty, wildlife habitat, and recreational opportunities supports a diverse range of user interests.