Volunteers will work with park staff to remove a patch of buffelgrass, an invasive non-native plant which threatens the Sonoran Desert.  We will meet at the Rincon Mountain Visitors Center and then carpool to a work site near Javelina Picnic Area.  Please park in the Administrative Parking Lot (first right after entering the park, follow road to the parking lot just south of the visitor center parking area).  Wear sturdy hiking shoes, long pants and a hat.  Bring plenty of water and gloves (if you have them); tools and gloves will be provided. Following the event, we will relax over snacks and cool beverages.  Advanced reservations are recommended, so we can get a general participant count.  Call 733-5187, or sign up at the visitor center.