Take an active role in a huge, nationwide citizen science project at O’Brien Prairie. Help catch and tag monarch butterflies as they are in route to their wintering grounds in Mexico. Learn more about the prairie and the insects that utilize it in the late summer. Participants will need to pre-register by noon on September […]

Campers will hand out candy to trick-or-treaters. We will take reservations for campsites on September 3rd starting at 8am by phone. Trick-or-treaters can park on either the north or south side of the park. Campgrounds on both sides of the park will be open for trick ‘r treating. Spooky hikes start at 8pm, meet at […]