Matt Brewery - Utica, NY
This is the second oldest continuously operating brewery in the US. Yuengling is the oldest, with Molson being the oldest in North America. They were the only NY brewery to survive prohibition and are also still family owned by the Matt family.
Some of my favorite mass produced beers are brewed here (Saranac and Brooklyn brands). This isn't quite a micro (12th largest in US) but it's these guys produce in a year what the bigger breweries produce in a month so the QC is much higher with each run.