The 400 State Trail is a 22-mile crushed-limestone rail trail through Juneau and Sauk counties, following the Baraboo River valley between Elroy and Reedsburg. It passes through Union Center, Wonewoc and LaValle, with wetlands, wildlife, sandstone bluffs and rolling croplands along the way. It connects with the Elroy-Sparta State Trail and the Omaha Trail in Elroy, and passes are sold at the Reedsburg Depot trail headquarters. The trail is open year-round. The coordinates are at Reedsburg, one of the trail's ends.