Missouri, 50 miles [80 km] measured on said boundary from the Mississippi River; thence by the last mentioned boundary to the Mississippi River, and by the western shore of said river to the place of beginning."According to The Making of Iowa (1900), "The Black Hawk Purchase extended along the west side of the Mississippi River from the north boundary of Missouri north to the Upper Iowa River. The Upper Iowa River is in the northeast corner of Iowa, and must not be confounded with the Iowa River in the southern half of the state. This is than where the tract extended from Missouri nearly to Minnesota. It was 50 miles [80 km] wide at the ends, and 40 in the middle." According to The History of Jefferson County, Iowa'' (1879), "This was a strip of land on the west bank of the Mississippi River, the western boundary of which commenced at the southeast corner of the present county of Davis; thence to a point on Cedar River, near the northeast corner of Johnson County; thence northwest to the neutral grounds of the Winnebagoes; thence to the Mississippi to a point above Prairie du Chien..." Still another history describes it as extending from the Yellow River in the north to the Des Moines River in the south. Two areas were held back as special awards; one was assigned to the chief Keokuk and his Sauk people in thanks for their neutrality (later known as Keokuk's Reserve); the other was given to "half-breed" translator Antoine LeClaire. (Note: LeClaire's reserve was different from the Half-Breed Tract, which was designated and set aside west of the Missouri River before the Black Hawk Purchase.) The land of the purchase was successively governed by the legislatures of the Michigan Territory, the Wisconsin Territory, Iowa Territory and finally Iowa. The Black Hawk Purchase was followed by the so-called Second Black Hawk Purchase (1837) and New Purchase (1842). See also Enos Lowe References External links A.T. Andreas, Illustrated Historical Atlas of the State of Iowa, 1875: "Indians of Iowa, Black Hawk, The Black Hawk War, The Black Hawk Purchase, Keokuk's Reserve, The Sac and Fox Agency, Indian Treaties", scanned at Rootsweb A.T. Andreas, Illustrated Historical Atlas of the State of Iowa, 1875: "Territorial Relations, Pike's Expedition, Spanish Grants, The Half-Breed Tract", scanned at Rootsweb "Treaty with the Sauk and Foxes, 1832", Treaty authorizing the Black Hawk Purchase, Digital