..., ascends to Cass Lake......July 21, 1820 General Leavenworth reports to the commissioners of the land office that the Indians do not recognize grant to Carver in 1767......1821 First mill in Minnesota , erected under the supervision of the officers of Fort Snelling on the site of Minneapolis......1822 Committee on public lands report to the Senate on Rev. Samuel Peters's claim to the Carver gra...