Several Scouts and leaders of Troop 413 and the Arrow of Light den of Pack 413 assisted National Park Service Park Rangers at Coronado National Monument near the Arizona-Mexico border remove an African Savana grass (once used for cattle grazing) and plant three variety of Milkweeds native to the southeastern corner of Arizona.The Milkweed will also be helpful for Monarch Butterflies on their migrations through the San Pedro Riparian National Conservation Area.