This map depicts observed oil spill landfall locations throughout the coastlines of Louisiana, Mississippi, Alabama and Florida as of Monday.
In Louisiana, Grand Isle and Barataria Bay have been hit the hardest.
In Mississippi, light oil has been observed on a few barrier islands.
In Alabama, the popular beach vacation destination Gulf Shores has observed heavy oil. Some heavy oil has also been spotted on Dauphin Island.
In Florida, the barrier island that includes Pensacola Beach has observed light oil.