National Park Service 401 N Hamilton St Saint Croix Falls, WI 54024 Phone : (715) 483-3284 National Park Service Business Category Government Offices-Federal Parks & Playgrounds Amusement & Recreation Government Offices & Public Schools United States Government--national Park Service, St Croix National Scenic Riverway, Park Headquarters Saint Croix Falls, WI 54024 Phone : (715) 483-3284 Business Category Government Offices-Federal Government Offices & Public Schools