It brings the Missouri and Northern Arkansas Railroad under a ridge , over which U.S. Route 62 ( US 62 ) travels .
The Cotter Tunnel is a railroad tunnel just outside Cotter , Arkansas .
Cotter Tunnel brings the Missouri and Northern Arkansas Railroad under a ridge , over which U.S. Route 62 ( US 62 ) travels .
The Cotter Tunnel is a railroad tunnel just outside Cotter , Arkansas .