From East sideStone Arch Bridge cross the Mississippi in front of St. Anthony Falls and the Lock and Damm. You then turn up river past downtown to the plymouth st. bridge cross the river to Boom Island park. follow trail through park to old RR bridge. Cross bridge to Niccolett Island. Follow dirt path to an old Iron and copper bridge. Cross to historic St. Anthony Main. Go south past tho original Pilsburry flour mill to the Stone arch bridge. Cross bridge to the start. About 3.5 miles. A great run!