Daily, except Thanksgiving, Christmas Eve, Christmas Day and New Year's Day.
Visitor Center hours are 8 a.m. to 5 p.m., seven days a week. Museum hours are 9 a.m.-Noon and 1-4 p.m., seven days a week. Note: The museum will be closed in December, January, February and March.
Park (Tour Road) hours are currently 8 a.m. to 7 p.m., seven days a week.