Just today I received a map of the Three Rivers Riverside Cemetery so I thought I would share. Before visiting Michigan last year I searched online for a map of the cemetery, but failed to find one. I hope this helps someone else. With about 10,000 burials, according to the city of Three Rivers website, finding a grave marker would be nearly impossible without knowing at least the section number. If you plan to go this summer be aware that the signs indicating the cemetery sections are not currently in place. They are being replaced and should be back up by the fall.