Clatsop State Forest Access provides multiple recreation opportunities along the Nehalem River, including Henry Rierson Spruce Run Campground with 32 drive-in and 5 walk-in sites, plus nearby Lost Lake Day-Use Area featuring a boat ramp for non-motorized use and picnic facilities.

Access is via Highway 26, with maintained gravel roads leading to various trailheads and camping areas throughout the forest; visitors should drive cautiously and watch for log truck traffic on these single-lane forest roads.