Sacajawea Park Polson Polson, MT Email Address: Sacajawea Park Polson 101 Main Street Polson, MT Info: 406- Region: Mission Valley Upcoming events at Sacajawea Park Polson Jul 19 Sat 10th Annual Flathead Lake Festival of the Arts Jul 19 - Jul 20 Polson Sacajawea Park Polson Art & Exhibits Festivals