138 - The Wallowa Lake Monster

The Wallowa Lake Monster, aka Wally, is said to reside in Wallowa Lake, Oregon. According to The Cryptid Wiki, "A local legend among the Nez Perce tribe states that when the Nez Perce and Blackfeet were at war, the daughter of the Nez Perce chief fell in love with the son of the Blackfoot chief. One night, the couple took a canoe from the Nez Perce camp and rowed out on the lake. Eventually, the rival tribes realized what was happening and set out after them. The monster then came up out of the lake and attacked them, killing them all. To this day, the Nez Perce do not venture out on the lake." There were also sightings of Wally all the way through the 20th century.