Friday, September 8: Monarch Butterfly Tagging in the Prairie, 6:00 p.m. We will search for any migrating monarchs and hope to tag them on their journey to Mexico. Wear sturdy walking shoes and meet at the Talbot Road entrance to the Sioux City Prairie. Free! The prairie is located approximately ½ mile north of the Military Road & Talbot Road intersection in Sioux City. Event is sponsored by The Nature Conservancy in Iowa and Woodbury County Conservation Board.