Ypsilanti (MI) CX Practice Race Fun

Here is idea. This seems like a good place for it (if not let me know or delete it or whatever): We meet, we ride. We can practice for cyclocross season and ride on some dirt. Knobby tires would be helpful (so a cx bike or a mountain bike would be best). Ultimately, I'd like it to be a meet up that meets at 11 or 11:30 on the first Saturday of every month (or every Saturday). We set up a race course based on existing obstacles. Then, when Washtenaw County tests the sirens at 12:00 noon, we race for 1/2 an hour. Or just ride around and find some dirt trails or roads to ride on. I'd like to start on August 11 at 11:11 at Frog Island in Ypsi.