Whether or not you see the Walgren Lake Monster, a mythical Loch Ness Monster-like creature that made national headlines decades ago, with a little luck you might see monsters of another variety – fish. The 50-acre lake is known for its excellent panfish population, shaded campgrounds and stone picnic shelter. The lake is located 2 1/2 miles east of Hay Springs and 2 1/2 miles south of U.S. Highway 20 on gravel roads.