More of a bar than a brewery - a very cool bar though! Amazing view of Lake Seneca, and excellent beer list, at pretty reasonable prices. Call first if you're only interested in their stuff.
La Fin Du Monde (the end of the world) beer is quite good. Comes in pint size at $10 per bottle. The view of Lake Seneca is also quite impressive from here.
A small solar-powered brewpub on Seneca Lake that makes delicious craft beer and serves all NY products: cider, wine, soda, beef-on-weck and breath-taking sunsets!