High Rock Park, Staten Island, NYC: Meet at the entrance to the White Trail (close to the intersection of Manor Road and Rockland Avenue, on Meisner Avenue, where the White Trail exits opposite the Bluebelt dam). We will follow the White Trail toward Nevada Avenue picking and bagging invasive garlic-mustard, and cutting whatever woody twining vines we encounter. Protectors will provide gloves, bags, tools and refreshments. After a two-hour work session (our 294th monthly workshop), we will take a short walk over nearby trails. For more information call Brian Smith at (917) 842-6585, or Don Recklies at (718) 768-9036. (Service credit is available.)