Now that the ice has melted off of Lake Pepin, Larry Nielson wants to remind people there’s something lurking in the blue-green waters – and he’s willing to pay you to prove it exists.

Located on the Mississippi River, Lake Pepin is bordered by Wisconsin on one side and Minnesota on the other. In the town of Lake City, Minnesota (population 5,261 as of 2019) on Lake Pepin’s shores, tales of a monster in the lake have been floating around since the 1870s. 

Supposedly a large, serpent-like creature, the monster – or Pepie, as the locals call it – has been seen by everyone from the Dakota Indians to local vacationers.