Missouri v. Iowa

Missouri v. Iowa
Supreme Court of the United States
Decided February 13, 1849
Full case name	State of Missouri v. State of Iowa
Citations	48 U.S. 660 (more) 7 How. 660; 12 L. Ed. 861
Holding
The true northern boundary of Missouri and southern boundary of Iowa exists along the line laid by Colonel John C. Sullivan in 1816 pursuant to the Osage Treaty of 1815.
Court membership
Chief Justice Roger B. Taney Associate Justices John McLean · James M. Wayne John Catron · John McKinley Peter V. Daniel · Samuel Nelson Levi Woodbury · Robert C. Grier
Case opinion
Majority	Catron, joined by Taney, McLean, Wayne, McKinley, Daniel, Nelson, Woodbury, Grier

State of Missouri v. State of Iowa, 48 U.S. (7 How.) 660 (1849), is a 9-to-0 ruling by the Supreme Court of the United States which held that the Sullivan Line of 1816 was the accepted boundary between the states of Iowa and Missouri. The ruling resolved a long-standing border dispute between the two states, which had nearly erupted in military clashes during the so-called "Honey War" of 1839.