Big MT North Tunnel

 is a location in the north of the Big Empty in the Fallout: New Vegas add-on Old World Blues.

Layout
Subway tunnel shaft with a door to the right of the entrance and a hole in the floor. The hole is guarded by an Overclocked Turret and covered with a force field. The hole leads into a cave tunnel with a group of crates at the bottom.

Notable Loot

 * Light Switch 02 personality tape, on shelf behind the door to the right of the entrance
 * LAER At the bottom of the cave in the tunnel
 * If the Overclocked Turret can be disabled without exploding, it contains a large amount of loot including a LAER, a Valence radii-accentuator, and two Weapon repair kits.

Lesser Loot

 * A locker, metal box and toolbox in the room to the immediate right as you enter the tunnel holds some random scraps and wrenchs and such. There is a nuka-cola machine next to the doorway.
 * Down the shaft there is 5 Mutant Fungus Plants you can pick.
 * At the end of the shaft next to the LAER is 3 metal boxes, 4 Wooden Crates and an ammunition box all containing some scraps.

Appearances
This location appears only in the Fallout: New Vegas add-on Old World Blues.