I assume you're referring to Powley, because there were none that were recognized officially before Powley. That was done through the Supreme Court. Before Powley, there were no recognized Métis communities in Ontario that I'm aware of. Powley was the first and is still the only one. It's a small place near Sault Ste. Marie.
Since then, Powley has been abused, in my view, to legitimize MNO assertions over the rest of Ontario. They're not using Powley. They're simply not. I don't know what the benchmarks are, but it ain't Powley.