Sullivan Line
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The Sullivan Line is the border between Missouri and Iowa.
The line was initially created to establish the limits of Native American territory (they would not be permitted south of it); disputes over the boundary were to erupt into the Honey War; and the boundary was to be the basis for the Iowa portion of the Mormon Trail.
In 1804, in the Treaty of St. Louis the Sac and Fox (tribe) ceded Missouri north of the Gasconade River (but not their villages on the Mississippi River near Keokuk, Iowa).
In 1808, in the Treaty of Fort Clark, the Osage Nation ceded all of Missouri and Arkansas west of the fort (now called Fort Osage in Jackson County, Missouri).
The exact boundaries of the treaties were never formally surveyed. Resentments about the treaties caused many members of the tribe to side with the British in the War of 1812. At the conclusion of the war, the tribes in the Treaties of Portage des Sioux reaffirmed the earlier treaties of 1815.
In 1816, surveyor John C. Sullivan was instructed to survey the Osage territory starting 20 WEST of Fort Clark at the confluence of the Kansas River and Missouri River. From the north bank of the river (opposite Kaw Point in what is today Kansas City Downtown Airport he was instructed to survey a line 100 miles straight north and then east to the Des Moines River (the Sac and Fox owned the land east of the river).
Sullivan’s line going north (the Indian Boundary Line (1816)) was to ultimately form the longitudal line from Iowa to Texas west of which Native Americans were to be removed in the Indian Removal Act of 1830.
The western terminus of the Sullivan Line is north of Sheridan, Missouri, at north latitude 40.571079[1]. Rather than drawing a border straight east he was to drift north about 12 miles to 40.613643 at the boundary's eastern terminus just south of what is now Farmington, Iowa.
When Missouri prepared to enter the Union in 1820, various boundaries were discussed before it was finally decided to go with a boundary that had already been formally surveyed and so the Sullivan line was picked.
However the Missouri Constitution muddied the debate when with phrase:
- to the intersection of the parallel of latitude which passes through the rapids of the River Des Moines
As it happened, there were no rapids where Sullivan came to the Des Moines River. However the Des Moines Rapids on the Mississippi River were just 15 miles in a straight line east of Sullivan’s eastern terminus.
In the Indian Removal Act of 1830, Sullivan’s lines were used for the removal of almost all Native Americans from the eastern portion of the United States (in such events as the Trail of Tears).
In 1832, at the conclusion of the Black Hawk War, the Sac and Fox conceded the eastern section of Iowa and the western section of Illinois. In the terms the 12 mile stretch between the end of the Sullivan Line and the Mississippi was conceded (in what was called Half Breed Tract because it was to be set aside for mixed race residents).
In 1836, the western boundary of the Sullivan Line latitude was extended 45 miles east to the Missouri River just south of Hamburg, Iowa when the federal government relocated the already relocated tribes further west in the Platte Purchase. The land was annexed to Missouri.
The western extension did not have the same quirks as the first survey since the solar compass had made it easier to make accurate east-west surveys.
However the quirks of the eastern portion of the Sullivan Line were to stir passions as Iowa prepared to enter the Union. Missouri, citing evidence from surveyor Joseph C. Brown, who had established the meridian grid for the Louisiana Purchase, said using the Kaw Point starting point was invalid and that the survey should have been based on the mouth of the Ohio River. Using that calculation he said that Missouri’s border should extend about 9.5 miles even further into Iowa (with the town of Keosauqua, Iowa, specifically coming into play).
In 1839, the Clark County, Missouri sheriff went into this new stretch to collect taxes. When the residents of Iowa refused to pay, he is said to have cut down three trees to collect honey bee hives in lieu of taxes. He was arrested
Residents from both sides threatened to fight before the governors agreed to let the United States Supreme Court settle the matter.
Also, in 1839, Latter Day Saints followers of Joseph Smith, Jr., regrouped at Nauvoo, Illinois, on the Mississippi River after having been kicked out of Missouri in the Mormon War. Nauvoo lies in a straight line with the Sullivan Line. In 1844 after Smith was killed, his followers began their trek west that was to ultimately lead them to Utah. The first Iowa leg of the trail is just north of the Sullivan Line.
In 1849, the Supreme Court ruled that the border even with its quirks was valid since it had been written into the Missouri Constitution. However, the border was resurveyed to address individual small anomalies.
Following various disputes, Midland GIS Solutions of Maryville, Missouri, led by Troy Hayes on a contract with the State of Missouri, resurveyed the border discovering the markers from the Supreme Court survey of 1850
