ACDFGHIJLMNORSTU U US Coast Gard Sector Guam US Marines Garrison pre-WW2 US Marines Seaplane Base 1920s US Navy Ammo Storage Bunkers US Navy Ammo Wharf USCG Orote LORAN A Slave Station 1964-77 USMC Sumay Airfield - Runway 7-25 - 1922 USN Apra Harbor Wastewater Treatment Pla USN Fena Lake Water Treatment Plant USN Helipads USN Orote Airfield Runway 11-25 - dorman USN Orote Airfield Runway 7-25 - 1944-19 USN Orote Quarry USN Wharf L USN Wharf M USN Wharf N USN Wharf O USN Wharf P USN Wharf Q USN Wharf R USN Wharf S USN Wharf T USN Wharf U USN Wharf V USN Wharf X ACDFGHIJLMNORSTU