FIELD TRIP IS FULL. An Overnight Trip to Multiple Sites in Black River State Forest. Meet in Black River Falls, Wisconsin, travel time of approximately 2 hours, 15 minutes from St. Paul, MN. Spend Saturday afternoon exploring various habitats. Stay overnight either at the Pigeon Creek Campground within the state forest, or at motels in Black River Falls. Spend the next morning exploring additional habitats and then travel back that afternoon.