Yellowstone Fact Sheet
|Based on information from the US National Park Service
3,472 square miles (8,987 square km)
2,219,823 acres (898,714 hectares)
63 miles north to south (102 km)
54 miles east to west (87 km)
Larger than Rhode Island and Delaware combined
91% in Wyoming
7.6% in Montana
1.4% in Idaho
Highest point: 11,358 ft (3462 m) - Eagle Peak
Lowest point: 5,282 ft (1610 m) - Reese Creek
Approximately 5% is covered by water; 15% is meadow and grassland; and 80% is forested.
Precipitation ranges from 10 inches (26 cm) at north boundary to 80 inches (205 cm) in the southwest corner.
Temperatures range from 10°F (-12°C) mean in January, to 55°F (13°C) mean in July at Lake Yellowstone in the center of the park. Record High Temp: 98°F (37°C) - Lamar 1936 Record Low Temp: -66°F (-54°C) - Madison 1933
8 species of conifers (Approximately 80% of forest is comprised of Lodgepole Pine.) Approximately 1,050 species of native vascular plants 168 species of exotic (non-native) plants
Largest concentration of free-roaming wildlife in the lower 48 states and the global temperate zone.
7 species of native ungulates (hoofed mammals)
2 species of bears. Approximately 49 species of other mammals. 90 species of birds. 18 species of fish (5 non-native). 6 species of reptiles. 4 species of amphibians. 5 species protected as "threatened or endangered"
136 square miles surface area (35,400 hectares)
110 miles of shoreline (177 km) 20 miles north to south (32 km) 14 miles east to west (23 km) Average depth - 139 feet (42 m) Maximum depth - 390 feet (119 m).
Approximately 10,000 thermal features
Approximately 200-250 active geysers
Tallest waterfall: 308 feet (94 m) - Lower Falls of the Yellowstone River. One of the world's largest calderas (volcanic explosion crater). It
measures 28 miles x 47 miles (45 km x 75 km).
9 visitor centers / museums / information stations. 9 hotels / lodges (2,184 hotel rooms / cabins). 7 NPS operated campgrounds (458 sites). 5 concession operated campgrounds (1,744 sites). Over 2,000 buildings (NPS and concession). 49 picnic areas
Roads and Trails:
5 Park entrances. 370 miles of paved roads. Approximately 1,200 miles of trails. 97 trailheads
Approximately 300 backcountry campsites.