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GENERAL
- 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)
WILDLIFE
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
FLORA
- 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)
GEOLOGY
- 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)
YELLOWSTONE LAKE
- 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)
CULTURAL RESOURCES
- 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
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LATITUDE / LONGITUDE / UTM
(NOTE: ALL UTMS ARE "Nad83")
1. Center of the park:
44 36 53.25 (Lat) -110 30 03.93 (Long)
UTM Zone 12: 4940281 N, 539584 E
2. Old Faithful:
44 27 37.31 (Lat) -110 49 41.59 (Long)
UTM Zone 12: 4923021 N, 513665 E
3. Mammoth:
44 58 34.79 (Lat) -110 42 03.37 (Long)
UTM Zone 12: 4980364 N, 523580 E
4. Entrances:
East Entrance:
44 29 18.42 (Lat) -110 00 13.80 (Long)
UTM Zone 12: 4926609 N, 579209 E
North Entrance:
45 01 46.39 (Lat) -110 42 31.32 (Long)
UTM Zone 12: 4986275 N, 522949 E
Northeast Entrance:
45 00 12.09 (Lat) -110 00 04.62 (Long)
UTM Zone 12: 4983809 N, 578510 E
South Entrance:
44 07 56.97 (Lat) -110 39 52.83 (Long)
UTM Zone 12: 4886643 N, 526824 E
West Entrance:
44 39 30.27 (Lat) -111 05 49.87 (Long)
UTM Zone 12: 4945010 N, 492295 E
ROADS AND TRAILS
- 5 park entrances
- 466 mi / 750 km of roads (310 mi/499 km paved miles)
- More than 15 Miles of boardwalks
- Approximately 1,000 mi / 1,600 km of backcountry trails
- 92 trailheads
- 301 backcountry campsites
VISITATION
- 3,394,321 people visited in 2011-6.8 percent lower than 2010
- 2010-2011 winter: 88,804 recreational visits
FACILITIES
- 9 visitor centers and museums
- 9 hotels/lodges (2,000+ hotel rooms/cabins)
- 7 NPS-operated campgrounds (450+ sites)
- 5 concession-operated campgrounds (1,700 sites)
- 1,500+ buildings (NPS and concessions)
- 52 picnic areas
- 1 marina
- 13 self-guiding trails
EMPLOYEES
- During the summer:
Approximately 780 National Park Service (about 400 year-round)
- Approximately 3,200 work for concessions
MAILING ADDRESS
National Park Service
P.O. Box 168
Yellowstone National Park, WY 82190-0168
Internet Website: www.nps.gov/yell/
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