Crater Lake

Crater Lake
Crater Lake winter pano2.jpg
Panoramic winter view of Crater Lake from Rim Village
Crater Lake is located in Oregon
Crater Lake
Crater Lake
Location in the United States
Crater Lake is located in the US
Crater Lake
Crater Lake
Crater Lake (the US)
Mazama bathymetry survey map.jpg
LocationKlamath County, Oregon
Coordinates42°57′N 122°06′W / 42°57′N 122°06′W / 42.95; -122.10
Lake typecrater lake
Primary inflowsprecipitation and snowmelt only
Primary outflowsevaporation, subsurface seepage to Wood River
Catchment area23.3 sq mi (60 km2)
Basin countriesUnited States
Max. length6 mi (9.7 km)
Max. width5 mi (8.0 km)
Surface area20.6 sq mi (53 km2)
Average depth1,148 ft (350 m)
Max. depth1,949 ft (594 m)
Water volume4.49 cu mi (18.7 km3)
Residence time157 years
Shore length121.8 mi (35.1 km)
Surface elevation6,178 ft (1,883 m)
IslandsWizard Island
Phantom Ship
1 Shore length is not a well-defined measure.
Panoramic view of Crater Lake – Spring 2016

Crater Lake (Klamath: giiwas[1]) is a caldera lake in south-central Oregon in the western United States. It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity. The lake partly fills a nearly 2,148-foot (655 m)-deep caldera[2] that was formed around 7,700 (± 150) years ago[3] by the collapse of the volcano Mount Mazama. There are no rivers flowing into or out of the lake; the evaporation is compensated for by rain and snowfall at a rate such that the total amount of water is replaced every 250 years. With a depth of 1,949 feet (594 m),[4] the lake is the deepest in the United States. In the world, it ranks ninth for maximum depth, and third for mean (average) depth.[5]

Crater Lake is also known for the "Old Man of the Lake", a full-sized tree which is now a log that has been bobbing vertically in the lake for over a century.[6][7] The low temperature of the water has slowed the decomposition of the wood, hence its longevity.

Crater Lake features two small islands. Wizard Island, located near the western shore of the lake, is a cinder cone approximately 316 acres (128 ha) in size. Phantom Ship, a natural rock pillar, is located near the southern shore.

While having no indigenous fish population, the lake was stocked from 1888 to 1941 with a variety of fish. Since then, several species have formed self-sustaining populations.[8] Since 2002, one of the state's regular-issue license plate designs has featured Crater Lake.[9] The commemorative Oregon State Quarter, which was released by the United States Mint in 2005, features an image of Crater Lake on its reverse.[10]


Crater Lake is in Klamath County, approximately 60 miles (97 km) northwest of the county seat of Klamath Falls, and about 80 miles (130 km) northeast of the city of Medford.[11]

In June 1853, John Wesley Hillman became the first non-Native American explorer to report sighting the lake he named the "Deep Blue Lake." The lake was renamed at least three times, as Blue Lake, Lake Majesty, and finally Crater Lake.[12][13]

Other Languages
العربية: بحيرة كراتير
azərbaycanca: Krater gölü
беларуская: Крэйтэр (возера)
भोजपुरी: क्रेटर झील
български: Крейтър
Cymraeg: Llyn Crater
Deutsch: Crater Lake
Ελληνικά: Λίμνη Κρέιτερ
Esperanto: Kratera Lago
français: Crater Lake
Հայերեն: Կրեյտեր (լիճ)
hrvatski: Jezero Crater
Bahasa Indonesia: Danau Crater
italiano: Lago Crater
ქართული: კრატერის ტბა
қазақша: Крейтер (көл)
latviešu: Kreitera ezers
lietuvių: Kraterio ežeras
magyar: Crater Lake
Nederlands: Crater Lake
português: Lago Crater
română: Lacul Crater
Simple English: Crater Lake
slovenščina: Kratersko jezero, ZDA
srpskohrvatski / српскохрватски: Jezero Crater
Türkçe: Krater Gölü
українська: Крейтер
Tiếng Việt: Hồ Crater