Lake Champlain's version of the Loch Ness Monster. People have reported seeing a monster in the lake for hundreds of years. In fact, the monster regardless of its actual existance is protected by both Vermont and New York laws. There was a monument to Champ erected in 1984, at the end of Burlington's Perkins Pier.
You may hear the locals refer to the Clinton Presidential Library this way. It does sort of resemble one.
Madison-area lakes can sprout huge blooms of blue-green algae, which can produce toxins and cause a flurry of nasty symptoms--and even death--in people and pets.
Milorganite is the brand name of a fertilizer that the Milwaukee Metropolitan Sewerage District started producing during the 1940s. Yes, it was made from the sewerage in Milwaukee treatment plant. The name is a contraction of Milwaukee Organic Nitrogen.