I would line to learn how to make wine. Where would I find a place for training
Montgomery County Maryland
You did not mention if you are commercial or a hobbyist. Here is some information on the MD Grape Growers Assn. http://extension.umd.edu/smallfruit/grapes
If this is not what you are interested in, you may need to contact local wineries, wine bars, or your County Recreation & Parks for classes.