Historical records indicate that the conventional Indian Trail that runs from Cadillac to Traverse City in western Michigan may date back to as early as 700 BC. The trail later became an important trade and transportation route for the native Ojibwe,Odawa, and Potawatomi people of the region. The trail is marked by 33 numbered stone slabs, and all but one are situated along contemporary roadways so they can be seen by driving the scenic 55-mile tour route that follows the trail. The vistas over the Manistee River valley can be particularly impressive along the way. These handsome stone markers present a unique and identifiable perspective on the Native American history of the region,by pinpointing a trade and transportation corridor that existed many centuries before Europeans settled in the area. It is also challenging to see how closely some parts of the trail parallel with the major roadways of today. Demarcation of this historic route began in the 1940s when a local farmer named Milo Petoskey Crosby placed 14 of the stone markers along the southern portion of the trail, running from Lake Mitchell in Cadillac north to the Manistee River. He spent years researching the history of the trail and walking the area in order to map it out.Later, or five more markers were added by local residents James Comp and Ed Babcock,who picked up the torch after Crosby. In 1987, the final 14 stone markers were installed northward to the trail's terminus at West conclude Beach in Traverse City. These were placed by the Little Traverse Bay Bands of Odawa Indians and the Grand Traverse Sesquicentennial group.
Source: atlasobscura.com