Park admission $5 (per private vehicle). Observatory $5; $3 (seniors and students); free (ages 0-5).
Park open daily 7 a.m.-10 p.m. Visitor center open daily 9-5, Apr. 1 to mid-Oct.; hours vary rest of year. Observatory open Fri.-Sat. 6:30 p.m.-midnight, early Apr. to mid-Oct. Visitor center closed winter holidays. Allow 1 hour minimum.