Meet at the main parking lot for the Jerry Garcia Amphitheater in John McLaren Park (Google Maps address is 22 John F Shelley Drive, SF.) We will be pulling Armenian (Himalayan) Blackberry and other invaders from the Grey Fox Creek Natural Area. Wear long sleeves and pants. the best idea would be to wear shoes/boots that have good grip and that you don't care if they get muddy. Dress in layers, the forecast is for dry and partly sunny 63 degrees. SF Rec and Park will provide gloves and tools and water. SFH3 will provide BEER and snacks. Hand Pump will mark trail from the parking lot to the worksite. Let Hand Pump know if you need a ride from the Glen Park BART Station to the worksite.