Visitor center (movie, exhibits and ranger programs) $5; free (ages 0-15); $10 (per private vehicle with more than two people). Guided tour $65 (2-hour); $95 (3-hour). Advance reservations are required for guided tours.
Daily 9-5. The film is shown every half-hour 9-4. Ranger-led talks daily at 10 and 1:30. Additional presentations may be scheduled in summer; phone ahead. Closed Jan. 1, Thanksgiving and Christmas. Allow 1 hour minimum.