And just one poke in the wrong wall, and the lake comes tumbling down.
The mine produces five million tons of rock salt a year. Despite that output, the mine is sparsely populated with many tunnels left unexplored. Which leads us to assume that at least one person has wandered too far into the abyss and re-emerged months later more salt than man, babbling nonsense about the sodium gods of the ancient times.
"The eyes ... The red eyes ..."
"They're lights, Ted."
Okay, in reality, it's probably innocent enough, but if someday the government reveals a salt-powered superweapon capable of destroying the entire planet, maybe postpone that Great Lakes fishing trip for now.