Ride the Wild Mile. An opportunity for local boaters. For more information, please contact: Jessica Kimmick at PacifiCorp, We'll be releasing water flows capable of supporting whitewater boating in the Swan River's Class IV 503-813-6945 or Wild Mile on Wednesdays, 5 p.m. to 9 Jessica.Kimmick@pacificorp.com. p.m., during July and August. PacifiCorp operates the Bigfork Hydroelectric Project on the Swan er second at 8 am. on the day of the event River in Bigfork, Montana. Providing eardless offlow later in the day. Please visit these flows is a requirement of the federal license to operate the Bigfork the day of the scheduled flow for updated Hydroelectric Project. The "Wild Mile" can be accessed Whitewater releases will occur only if natural flows in the river are at least 800 cubic feet http://waterdata.usgs govInwis/uv?12370000 river flows. 8 from the South Shore Recreation PACIFICORP Site located just out of town or State Highway 209.