WARRENSBURG The Warrensburgh Riverfront Farmers' Market will end the season in the spirit of Halloween on Fri. Oct. 31 from 3 to 6 p.m. Vendors will be in costume, selling fresh, locally grown, raised and prepared foods, offering samplings of food and drink, and presenting giveaways to all those market patrons who choose to dress up for the occasion. Bring your children and grandchildren for special treats and creepy craft activities. Stand by the cauldron and enjoy a hot cup of "witches brew" and other delights! Follow the scarecrows to the edge of the Schroon River along Rte. 418. Call 466-5497 for details.