Paulina Lake is one of the twin crater lake

Crater lake

A crater lake is a lake that forms in a volcanic crater or caldera, such as a maar; less commonly and with lower association to the term a lake may form in an impact crater caused by a meteorite. Sometimes lakes which form inside calderas are called caldera lakes, but often this distinction is not...

s (the other being East Lake), located 6350 feet (1,935.5 m) above sea level in Newberry Crater, Central Oregon

Central Oregon

Central Oregon is a geographic region in the U.S. state of Oregon and is traditionally considered to be made up of Deschutes, Jefferson, and Crook counties. Other definitions include larger areas, often encompassing areas to the north towards the Columbia River, eastward towards Burns, or south...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. It is in the Deschutes National Forest

Deschutes National Forest

The Deschutes National Forest is a United States National Forest located in parts of Deschutes, Klamath, Lake, and Jefferson counties in central Oregon. It comprises 1.8 million acres along the east side of the Cascade mountains. In 1908, the Deschutes National Forest was established from parts...

 near La Pine

La Pine, Oregon

La Pine is a city in Deschutes County, Oregon, United States, incorporated on December 7, 2006.La Pine is part of the Bend, Oregon Metropolitan Statistical Area. The population was 5,799 at the 2000 census, at which time it was a census-designated place . La Pine is in an isolated area of Central...

. The crater was built from 500,000 years of volcanic eruptions

Volcano

2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...

. The lake's main inflow is from snow melt, hot springs, and seepage from East Lake. Its primary outflow is Paulina Creek. The average depth is 163 feet (49.7 m), while the deepest part of the lake reaches 250 feet (76.2 m). The lake covers 1531 acres (6.2 km²). It is about 50 feet (15.2 m) lower, and to the west of its twin, East Lake. Paulina Lake is known for its large number of kokanee salmon, and brown trout

Brown trout

The brown trout and the sea trout are fish of the same species....

.