Sturgeon Lake is a lake on

Sauvie Island Sauvie Island is in the U.S. state of Oregon, originally named as Wapato Island or Wappatoo Island. It is the largest island along the Columbia River, at , and one of the largest river islands in the United States. It lies approximately north ...

in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...

Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...

. Named for its historical population of

sturgeon Sturgeon (from Old English ultimately from Proto-Indo-European language, Proto-Indo-European *''str̥(Hx)yón''-) is the common name for the 27 species of fish belonging to the family Acipenseridae. The earliest sturgeon fossils date to the ...

, it is the largest lake on what is one of the largest

river island River Island (stylised as RiverIsland and abbreviated as RI) is a London-based, multi-channel fashion brand, founded in 1948 by Bernard Lewis (entrepreneur), Bernard Lewis. The retailer has a presence in over 125 of worldwide markets, in stores ...

s in the United States. Located within the Sauvie Island Wildlife Area, the lake is a critical habitat within the

Pacific Flyway The Pacific Flyway is a major north-south flyway for migratory birds in the Americas, extending from Alaska to Patagonia. Every year, migratory birds travel some or all of this distance both in spring and in fall, following food sources, heading ...

for migratory waterfowl, hosting over 200,000 birds annually. In recent decades, the lake has had a number of environmental problems, beginning with the fact that it is filling in with

silt Silt is granular material of a size between sand and clay and composed mostly of broken grains of quartz. Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension (chemistry), suspension with water. Silt usually ...

. Its only remaining inflows and outflows are the Gilbert River and Dairy Creek, the latter of which is significantly reduced in flow. The lake has also sometimes been closed due to toxic algae blooms.

References

Lakes of Oregon Sauvie Island {{Oregon-stub