Have you ever climbed to the top of a fire tower? Minnesota has several fire towers you can climb, and I got to check out the one at the Forest History Center in Grand Rapids and learn how trigonometry was once used to figure out the location of a fire. Next time you are Up North, add mnhs.info’s foresthistorycenter to your destination list to learn more about the history of the Minnesota Northwoods. #oneminutetours #minnesota #firetower