From Memorial Day weekend to October 31, park Exhibit buildings are open daily from
 9:00 a.m. to 4:30 p.m. and the grounds until dusk.

From November through late May, the exhibit buildings are closed, but the park Visitor Center is often open most days Monday - Friday, from 8:30 A.M. - 4:15 P.M. Park information, brochures and the Eastern National passport stamp are available there. If you wish to purchase an America the Beautiful annual, access, or senior pass, please call ahead.

For your safety, please be aware that during the winter months, most areas of the park are not maintained for public use. Visitors should take care as many pathways and trails may be snow covered and slippery. Trails are also not regularly patrolled during the off season.