Humbug Mountain lies on the southern coast of the U.S. state of Oregon. It is located about 6 miles (10 km) south of Port Orford, and 21 miles (34 km) north of Gold Beach, on the Pacific Ocean. The mountain is completely within Humbug Mountain State Park, and U.S. Route 101 passes by its northern base. It is one of the highest mountains in Oregon to rise directly from the ocean. Its slopes feature an old-growth temperate rainforest. Two trails run from the state park campground to the mountain's summit, one 1.5 miles (2.4 km) long, the other 2 miles (3.2 km) long. Both are part of the much longer Oregon Coast Trail.