Clackamas River, Lower - River Mill Dam to Willamette River is a 24 mile trail located near Estacada, OR. The trail is primarily used for hiking and whitewater kayaking and is accessible from October until June. 24.0 miles 300 feet hiking whitewater kayaking Expand Map Sign up now to see this map! Reviews (0)Photos (0)Recordings (1)No one has reviewed this trail yet. Be the first!