Mayfield Dam is .5 mi. s.e. on US 12, then 1.3 mi. s. on Gershick Rd. The dam crosses a gorge along the Cowlitz River to form 13-mile-long Mayfield Lake. An overlook offers fine views. Mayfield Lake County Park, 180 Beach Rd. in Mossyrock, and Ike Kinswa State Park, 873 US 122, border the lake and offer year-round recreation.
Recreational activities are permitted. Camping is permitted.