Helipad Coordinates for use by Emergency Response and Transport Agencies: 33º 26' 41.171" N | 33.44476972 N 118º 29' 00.841" W | 118.48356694 W Coordinate System: WGC 84
The USC Catalina Hyperbaric Chamber is located on the campus of the USC Wrigley Marine Science Center near the Isthmus of Santa Catalina Island, which lays approximately 20 miles (32 km) off the coast of the Los Angeles Basin.
The lab is 2 miles (3.2 km) by road from the village of Two Harbors at the Isthmus, and 25 miles (40.2 km) from the major city of Avalon.
Catalina Island is a major diving location, with many prime dive sites on the West End of the island (map below from Franko's Maps). The location of the Chamber allows for rapid transportation of patients from these sites by LA County Lifeguard Baywatch boats to the Chamber.
With the helipad adjacent to the Chamber Hanger patients can be rapidly flown in (generally by the US Coast Guard) from the other Channel Islands and the mainland for treatment. Shaded area below shows the area where most of the divers over the years have been brought in from.