When Detroit was settled, Campus Martius was deemed the center of town because it was where all of the main roads came together. It was the location of the first train station, city hall, and was deemed the starting point for the state's mile road system.
Because Campus Martius is on an angle, and Woodward Avenue is too, the mile roads are counted directly north from the park, and the roads run east and west.
That makes Michigan Avenue "zero mile.”
**Attention all cachers, the 2017 caches may require: friends, a selfie stick, a camera phone, a 16.9 oz bottle of water, and maybe a mirror would be handy. Don’t cache without them!**
Belle Isle is a Michigan State Park so you will need a Recreation Passport, here are the rates:
• $11 - Michigan annual pass (vehicle)(daily passes are no longer available)
• $5 - Michigan annual pass (motorcycles)
• $32 - Non-resident annual pass
• $9 - Non-resident daily pass