US Army Corps of Engineers
Jacksonville District Website

Robert Johnson, Director of the South Florida Natural Resources Center, National Park Service, shows periphyton, the base of the food chain in the Everglades, to Minister Chen Lei, Jacksonville District Commander Col. Jason Kirk, Gao Bo (with camera) and other members of the Chinese delegation during a tour of Shark Valley in Everglades National Park.
Robert Johnson, Director of the South Florida Natural Resources Center, National Park Service, shows periphyton, the base of the food chain in the Everglades, to Minister Chen Lei, Jacksonville District Commander Col. Jason Kirk, Gao Bo (with camera) and other members of the Chinese delegation during a tour of Shark Valley in Everglades National Park.