One of the strangest lakes in Michigan is truly a unique place, as News 9 & 10 in Traverse City puts it, where science, geology, time and gravity have come together to create something unexpected, which was caused by the collapse of a cavern about 900 feet below the surface.
Because of the collapse, water from the sinkhole on the bottom of the lake will rise up, filling to nearly 30 foot deep waters, before draining right back down the sinkhole as the water travels to Lake Huron. On normal years, Springtime would be the return of the water rising, then around November, the water would go back down the swallow hole.