Fort Koshkonong was located at a site which today is in the city of Fort Atkinson, Wisconsin

Fort Atkinson, Wisconsin

Fort Atkinson is a city in Jefferson County, Wisconsin, United States. It is located on the Rock River, a few miles upstream from Lake Koshkonong. In 1996, Money Magazine named Fort Atkinson "One of America's Hottest Little Boomtowns." The population was 11,621 at the 2000 census.- History :Fort...

, about three blocks east of Main St. along Milwaukee Ave. General

General

A general officer is an officer of high military rank, usually in the army, and in some nations, the air force. The term is widely used by many nations of the world, and when a country uses a different term, there is an equivalent title given....

 Henry Atkinson was the commander of the fort during the Black Hawk War

Black Hawk War

The Black Hawk War was a brief conflict fought in 1832 between the United States and Native Americans headed by Black Hawk, a Sauk leader. The war erupted soon after Black Hawk and a group of Sauks, Meskwakis, and Kickapoos known as the "British Band" crossed the Mississippi River into the U.S....

. It was used as a station for local militia units and the US regulars in the region to scout the British Band. Black Hawk was in the same general area, but evaded capture and started to flee towards the Wisconsin River. The original fort was abandoned following the conflict and was dismantled by local settlers for the wood. The fort's location is along the Rock River

Rock River (Illinois)

The Rock River is a tributary of the Mississippi River, approximately long, in the U.S. states of Wisconsin and Illinois. It rises in southeast Wisconsin, in the Theresa Marsh near Theresa, Wisconsin in northeast Dodge County, Wisconsin approximately south of Fond du Lac, Wisconsin...

 and is marked with a monument. There is also a replica of the fort built during the 1930s by the WPA. It's over all size is somewhat larger than the actual fort, but gives a good representation of how it looked during the Black Hawk War.

Fort Koshkonong shares its name with Lake Koshkonong

Lake Koshkonong

Lake Koshkonong is a reservoir in southern Wisconsin. It lies along the Rock River, . down-river from Fort Atkinson, primarily in southwestern Jefferson County, although small portions of the lake extend into southeastern Dane and northern Rock counties....

, which is several miles downriver. That lake is very shallow, and at the time the fort was active, before it was dammed, was actually more of a marsh than a lake.

According to USGS GNIS, the Fort was located at 42°55′37"N 088°49′52"W. The replica is located about a mile and a half west in Rock River Park at 42°55.541′N 088°51.475′W.