Closed for lunch. Information is available and books, maps, restrooms, water, phones, etc. A short orientation program is shown in the auditorium. Information is available and books, maps, restrooms, water, phones, etc. Thursday 9am - 4pm.
Hikers require one gallon per day per person.
Start your return trip before half your water is gone. Treat spring water before drinking and don't drink the river water. Weather Annual precipitation is just under 10 inches in most of the park, but in wet years may exceed 30 inches in the mountains. Summer brings hot days and warm nights. Dramatic afternoon lighting storms with high winds are common and come on quickly.