MAILING ADDRESS Effigy Mounds National Monument; Rural Route 1, Box 25A; Harpers Ferry, IA 52146; Telephone: 319-873-3491 DIRECTIONS The Monument is located in the northeastern part of the state at the Mississippi River. The Monument is three miles north of Marquette on Highway 76. WHEN TO VISIT Open year round. Peak visitor month is July. Winters are cold, Summers are hot. POINTS OF INTEREST The Monument contains outstanding examples of prehistoric American Indian mounds, some in the shapes of birds and bears. ACTIVITIES Visitor Center; museum/exhibits; NPS guided tours; self-guiding tours/trails; hiking; cross-country ski trail. GENERAL INFORMATION Food, supplies, and overnight accommodations are available in Waukon, McGregor, and Prairie du Chien.