By Jason Feulner, Finger Lakes Correspondent Although Ravines Wine Cellars is located on Keuka Lake, owner-winemaker Morten Hallgren crafts his wines using space at Shaw Vineyard, located a few miles to the east on Seneca Lake. Hallgren and Steve Shaw, winemaker and owner of Shaw Vineyard, work independently but of course try to coordinate production schedules to enhance services and manpower. Before the fall harvest, Steve Shaw invited me over to the winery to watch as he bottled some of the reds wines from both wineries. I was interested to check it out because both winemakers use a mobile bottling…