Alaska Geographic Coordination Center
Eastern Area Geographic Coordination Center
Great Basin Geographic Coordination Center
Norther California Geographic Coordination Center
Northern Rockies Geographic Coordination Center
Northwest Geographic Coordination Center
Rocky Mountain Arean Geographic Coordination Center
Southern Area Geographic Coordination Center
Southern California Geographic Coordination Center
Southwest Geographic Coordination Center

+proj=longlat +datum=WGS84 +no_defs +ellps=WGS84 +towgs84=0,0,0