Big Spirit Lake is a natural body of water, approximately 5684 acres (2,300.2 ha) in area, in Dickinson County

Dickinson County, Iowa

-2010 census:The 2010 census recorded a population of 16,667 in the county, with a population density of . There were 12,849 housing units, of which 7,554 were occupied.-2000 census:...

 in northwest Iowa

Iowa

Iowa is a state located in the Midwestern United States, an area often referred to as the "American Heartland". It derives its name from the Ioway people, one of the many American Indian tribes that occupied the state at the time of European exploration. Iowa was a part of the French colony of New...

 in the United States

United States

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

. It is part of the chain of lakes known as the Iowa Great Lakes

Iowa Great Lakes

The Iowa Great Lakes are a group of natural glacial lakes in Dickinson County in northwestern Iowa in the United States. The three principal lakes of the group are Spirit Lake, West Okoboji Lake, and East Okoboji Lake. They are the largest natural lakes in the state of Iowa. The largest, Spirit...

, the northern shore of the lake straddles the border with Minnesota

Minnesota

Minnesota is a U.S. state located in the Midwestern United States. The twelfth largest state of the U.S., it is the twenty-first most populous, with 5.3 million residents. Minnesota was carved out of the eastern half of the Minnesota Territory and admitted to the Union as the thirty-second state...

. It is the largest natural lake in Iowa. The Dakotah Indian name for the lake was Minnewaukon. Early French traders named it Lac D' Esprit after the Indian legends of an evil spirit who dwelled in the lake.

Its maximum depth is 24 feet (7.3 m), and the mean depth is 17 feet (5 m). The drainage area of the lake is approximately 22 square miles (57 km²). It has a drainage area of approximately 75 mi² (194 km²), most of which is in Minnesota.

Geology

Geologically, the lake, like its neighbors, is a glacial pothole, a remnant of the most recent ice age

Ice age

An ice age or, more precisely, glacial age, is a generic geological period of long-term reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental ice sheets, polar ice sheets and alpine glaciers...

 approximately 13,000 years ago.

Recreation

The lake is a popular fishing destination in the region. It contains over 40 species of fish, 13 of which are typically caught. Fishing for walleye

Walleye

Walleye is a freshwater perciform fish native to most of Canada and to the northern United States. It is a North American close relative of the European pikeperch...

 and yellow perch

Yellow perch

The yellow perch is a species of perch found in the United States and Canada, where it is often referred to by the shortform perch. Yellow perch look similar to the European perch, but are paler and more yellowish, with less red in the fins. They have six to eight dark, vertical bars on their sides...

 is typically done by boat or through the ice. Fishing for bullhead

Bullhead

-Fishes:* Certain sculpins, including:** European bullhead, Cottus gobio** Siberian bullhead, Cottus poecilopus** Norway bullhead, Taurulus Liljeborgi* Catfish of the genus Ameiurus, including:** Black bullhead, Ameiurus melas...

 is common from the shore during the spring. A state-operated fish hatchery also provides significant populations of largemouth bass

Largemouth bass

The largemouth bass is a species of black bass in the sunfish family native to North America . It is also known as widemouth bass, bigmouth, black bass, bucketmouth, Potter's fish, Florida bass, Florida largemouth, green bass, green trout, linesides, Oswego bass, southern largemouth...

, smallmouth bass

Smallmouth bass

The smallmouth bass is a species of freshwater fish in the sunfish family of the order Perciformes. It is the type species of its genus...

, northern pike

Northern Pike

The northern pike , is a species of carnivorous fish of the genus Esox...

, muskie

Muskie

Muskie may refer to:*Ed Muskie, American politician*Muskellunge, freshwater fish native to North America...

, crappie

Crappie

Crappie is a genus of freshwater fish in the sunfish family of order Perciformes. The type species is P. annularis, the white crappie...

, and bluegill

Bluegill

The Bluegill is a species of freshwater fish sometimes referred to as bream, brim, or copper nose. It is a member of the sunfish family Centrarchidae of the order Perciformes.-Range and distribution:...

.

The Iowa all-time big fish records for freshwater drum

Freshwater Drum

-Introduction:The freshwater drum, Aplodinotus grunniens, is a fish endemic to North and Central America. It is the only species in the genus Aplodinotus. The Freshwater drum is a member of the family Sciaenidae, and is the only member of the species that inhabits freshwater for its entire life...

 and muskellunge

Muskellunge

A muskellunge , also known as a muskelunge, muscallonge, milliganong, or maskinonge , is a large, relatively uncommon freshwater fish of North America. Muskellunge are the largest member of the pike family, Esocidae...

were set from catches in the lake.

External links

• Iowa Department of Natural Resources site on Spirit Lake
• University of Iowa site on Spirit Lake chemistry