The steep and bendy access roads to the Lost Coast reduce average driving speeds to less than 30 mph, making the journey even longer than might be expected. Distances include Mattole Beach to Ferndale, 35 miles; Mattole Beach to Shelter Cove, 50 miles; Shelter Cove to US 101, 23 miles and Mattole Beach to US 101 (via Humboldt Redwoods State Park), 40 miles.