A barge named Battle Ship (4820708801)

Dennis Pass, La. - A barge named Battle Ship, which has served as a fishing camp, is now home to U.S. Fish and Wildlife Service personnel and other spill responders who use it as a base from which to patrol for oiled wildlife. It is anchored in Dennis Pass, which connects the Gulf of Mexico to the Mississippi River.
Photo credit: Phil Kloer/USFWS

www.fws.gov/home/dhoilspill/