The Nicollet County Historical Society invites you to explore the people, places, and events that have shaped this part of southern Minnesota. Based in Saint Peter, Minnesota, we preserve and share local history through exhibits, archives, and programs at the Treaty Site History Center and the E. St. Julien Cox House. Whether you’re visiting for the first time or are a longtime friend, NCHS offers a welcoming place to uncover the stories that make Nicollet County unique.