Aztalan State Park is a Wisconsin state park located just south of the town of Aztalan, Wisconsin at latitude N 43° 4' and longitude W 88° 52', and established in 1952. It was also designated a National Historic Landmark in 1964 and added to the National Register of Historic Places in 1966. The park covers 172 acres (0.7 km or 70 ha) along the Crawfish River.