Cotter Tunnel

The Cotter Tunnel is a railroad tunnel just outside Cotter, Arkansas. It brings the Missouri and Northern Arkansas Railroad under a ridge, over which U.S. Route 62 (US 62) travels. The tunnel is 1034 ft in length, and is hewn through solid rock in a northwest–southeast orientation. The southeastern portal is finished in sprayed concrete, while the northeastern portal is unfinished. The tunnel was built in 1903–04 by the White River Division of the Missouri Pacific Railroad, and formed a vital transportation link to the area at that time. The rail line continues to see active freight service.

The tunnel was listed on the National Register of Historic Places in 2007.