22,369
Overnight campsites in approximately 1,080 campgrounds.
21,335
National Park Service-owned buildings.
16,885
Mileage of 5,245 named trails.
10,096
Park road mileage as of September 30, 2005. Includes 5,804 miles of paved roads and 4,292 miles of unpaved roads.
“Almost 5,000”
Employee housing units.
4,853
Picnic sites in 491 picnic areas.
1,625
Waste-water treatment systems.
909
Visitor centers and contact stations.