There are over 1,700 marine protected areas, or MPAs, in the U.S. that cover approximately 34 percent of marine waters. MPAs are found in every region of the United States. The West Coast (California, Oregon, and Washington) has the highest number of MPAs; however, the region with the largest area of MPAs is the Pacific Islands. This is because of the designation of the Papahānaumokuākea Marine National Monument, which is one of the largest marine conservation areas in the world.  ...