US Extended Continental Shelf

The U.S. Extended Continental Shelf Task Force directs and coordinates the Extended Continental Shelf Project, an effort to delineate the U.S. continental shelf beyond 200 nautical miles.

Visit the ECS website for more information.

The process to determine the outer limits of the U.S. ECS requires the collection and analysis of data that describe the depth, shape, and geophysical characteristics of the seabed and sub-sea floor. In 2011, the R/V Marcus G. Langseth collected seismic data in the central Bering Sea Basin and Gulf of Alaska in conjunction with this effort.
Visit the mission websites for the Bering Sea and the Gulf of Alaska.
JPEG Location of USGS Science Missions, Bering Sea and Gulf of Alaska (Map courtesy of USGS)