The Lee and Rose Warner Nature Center is located 30 miles northeast of St. Paul, Minnesota near historic Marine on St. Croix. The oldest private nature center in Minnesota, Warner features over 600 acres of undeveloped woodland, marsh, lake, bog and grasslands. Within the Trailside Museum, visitors can learn about our public natural history programs, learn how to become a volunteer or Friend of Warner, and experience the Hidden Wonders of Warner, our brand-new interactive, hands-on education exhibits.