Visitor Center Hours
- Off-Season Hours: 8 a.m. to 4:30 p.m. daily (Closed Nov. 23, Dec. 25 & Jan. 1)
- Summer Hours: 8 a.m. to 6 p.m. daily (Memorial Day through the third week of September)
The Monument and Preserve is open every day of the year, 24 hours a day. Winter snows usually prevent automobile access around the Loop Road from December through mid-April.