Quote Originally Posted by oldhaole
I've only seem this done once. It ended badly, but the idea is sound.

Dig the hole to 15 ft. Drop in a shipping container. Cut your entrance and bury the rest. If you wanted to link them or row them,...thats a lotta dirt to move....have fun.
there was a guy here that did something simalar used a 40 foot long drainage pipe with a 12" Diameter it was under a metal carport that had a slide away floor and also used smaller drainage pipe for an escape tunnel. he used it to process some other drugs he was messing with and got busted running in the gulf