Officials will soon begin a years-long study about what should happen to the Ford lock and dam. Learn more about the issues — and the possibilities — by coming to a free tour this summer. Friends of the Mississippi River will be hosting a free walking of the Wednesday, July 13 at 5:30 pm and Thursday, August 4 at 3 pm. Meet at the splash pad at the Wabun Picnic Area (4655 46th Ave S. in Minneapolis). No registration required.