VTS SAN FRANCISCO - U.S. Coast guard photo

Seattle, WA (Apr 11)--Lee Christopherson, of Vessel Traffic Service Puget Sound, Wash., plots a vessel's position-part of an international cooperative traffice system governing the Straits of Juan d Fuca by both the American and Canadian VTSs.. The mission of the VTS is to coordinate the safe and efficient transit of vessels in an effort to prevent accidents and the associated loss of life and damage to property and the environment. USCG photo by PA1 Telfair H. Brown