A blurry picture of the colt tunnel
The Colt Tunnel is the large tunnel underneath The Farm in Flint County near San Fierro. The tunnel is straight and can be used as a shortcut from Los Santos to San Fierro and vice versa. The tunnel is just to the south of Easter Bay Chemicals.
When the player enters the tunnel, just like any other tunnel it will be seen as a dimly lit alley way, however the player can just follow the road to the exit.