Cable Natural History Museum Exhibit Open House. The Northwoods ROCKS! In the Northwoods, geology is the foundation for FUN! Learn how ancient volcanoes, tropical oceans, mountains of rock, and mountains of ice shaped the landscape where we love to play. Refreshments will be served from 10am to noon at the Cable Natural History Museum. Free admission all day. Donations welcome. For more info visit cablemuseum.org or call the Cable Natural History Museum at 715-798-3890. For a complete list of programs go to https://www.cablemuseum.org/events/