The mystery was solved back in the 1800's! The geographic middle of the lower peninsula is in St. Louis! This marker is located in Clapp Park. Inquiring minds want to know. St Louis is just north of Alma off of Highway 127. Jim Northrup, who passed away earlier this month, played for the Tigers from 1964-74. He graduated from high school in St Louis. The fifth annual St Louis Blues Festival takes place July 1-2.