Google fixed the location. Now correct, although it is called Palmer Lizzies. It is a small grocery store and deli counter. It is a good place to take a break with an inexpensive lunch after bicycle riding with the kids on the South County Trailway. It is halfway between the Elmsford trailhead and Van Cortlandt Park at the Bronx border.
To reach the market, get off the Trailway about 10 meters north of the Bryn Mawr Station historical marker. Then head away from faux train station building about 30 meters and you will come to what is now called "Palmer Lizzie's Market."