Route 4 Access provides gateway access to the East Fork Carson River near Centerville Flat in Alpine County, with a campground available at the site.

The access point is located along State Route 4 east of Lake Alpine, though note that SR 4 experiences seasonal winter closures and is a narrow, winding mountain road with challenging switchbacks.

Wolf Creek Road stems south from this location and provides additional access into the Carson Iceberg Wilderness area.