Historic Name: Mile Post Zero-Treaty Tree

Location: T42N-R36W Section 18 (point where Brule River leaves Brule Lake)

Date established: 1840

Ownership: public

History: As part of the settlement of the "Toledo War," between Michigan and Ohio, most of the Upper Peninsula of Michigan was granted to Michigan for the "Toledo Strip" which was granted to Ohio. Captain Thomas Cram, of the U.S. Corps of Topographical Engineers, conducted a reconnaissance exploration and established the Mile Corner Zero in 1840 and the route of the line in 1841. He made a treaty for passage with Chief Ca-Sha-O-Sha and his band of Ojibwa (Chippewa) near a large tamarack tree near the Mile Corner Zero at the Brule River.

William Austin Burt, famed surveyor of the Upper Peninsula and inventor of the Solar Compass, conducted the actual survey in 1847 after again making treaty with Chief Ca-Sha-O-Sha. Burt inscribed the following message on the Treaty Tree:

WM. A. BURT
June 7, 1847
State Boundary

The boundary was the subject of much litigation between Michigan and Wisconsin. The dispute was settled by the Supreme Court of the United States in 1926 and a Joint Boundary Commission of the two states permanently monumented the boundary in 1928.

The Historical Site has been developed by the U.S. Forest Service. The site includes a picnic area and a boat landing. The latter serves Brule Lake and is a launching point for canoe travel down the Brule and Menominee rivers. It also served the Indians as a junction of overland trails with water routes.

A dedication of the State Line Historical Site was held July 23, 1964.