Stats of Yellowstone National Park
- World's First National Park
- A designated World Heritage Site and designated Biosphere Reserve
- 3,472 square miles or 8,987 square km
- 2,221,766 acres or 898,317 hectares
- 63 air miles north to south (102 km)
- 54 air miles east to west 87 km)
- 96 % in Wyoming
- 3 % in Montana
- 1 % in Idaho
- Highest Point: 11,358 ft / 3,462 m (Eagle Peak)
- Lowest Point: 5,282 ft / 1,610 m (Reese Creek)
- Larger than Rhode Island and Delaware combined
- Approximately 5% of park is covered by water; 15% is grassland; and 80% is forest
- Precipitation ranges from 10 inches (26 cm) at the north boundary to 80 inches (205 cm) in the southwest corner
- Temperatures (average) at Mammoth: January: 9° F/-13 C in
July: 80° F/27 C - Records:
High: 99°F/37 C, 2002 (Mammoth)
Low Temp: -66° F/-54 C (West Entrance, Riverside Station 1933)
67 species of mammals, including:
- 7 species of native ungulates
- 2 species of bears
- 322 recorded species of birds (148 nesting species)
- 16 species of fish (5 non-native)
- 6 species of reptiles
- 4 species of amphibians
- 2 threatened species: Canada lynx, grizzly bear
- 1 endangered species: gray wolf
- 7 species of conifers
- Approximately 80% of forest is comprised of lodgepole pine
- Approximately 1,150 species of native vascular plants
- More than 199 species of exotic (non-native) plants
- 186 species of lichens
- At least 406 species of thermophiles (only 1% of hydrothermal areas inventoried)
- An active volcano
- Approximately 1,000-3,000 earthquakes annually
- Approximately 10,000 thermal features
- More than 300 geysers
- One of the world's largest calderas, measuring 45 by 30 miles (72 by 48 km)
- Thousands of petrified trees in northern Yellowstone
- Approximately 290 waterfalls, 15 ft. or higher, flowing year-round
- Tallest waterfall: Lower Falls of the Yellowstone River at 308 ft. (94 m)
- 131.7 sq. miles (35,400 hectares) of surface area
- 141 miles (177 km) of shoreline
- 20 miles (32 km) north to south
- 14 miles (23 km) east to west
- Average depth: 140 feet (43 m)
- Maximum depth: about 410 feet (122 m)
- 26 associated American Indian tribes
- Approximately 1,600 archeological sites
- More than 300 ethnographic resources (animals, plants, sites)
- More than 24 sites, landmarks, and districts on the National Register of Historic Places
- 1 National Historic Trail
- More than 900 historic buildings
- More than 379,000 cultural objects and natural science specimens
- Thousands of books (many rare), manuscripts, periodicals
- About 90,000 photographic prints and negatives