Park ranger
A park ranger, park warden, or forest ranger is a person entrusted with protecting and preserving parklands – national, state, provincial, or local parks. "Parks" may be broadly defined by some systems in this context, and include protected culturally or historically important built environments, and is not limited to the natural environment. Different countries use different names for the position. "Warden" is the favored term in Canada, Ireland, and the United Kingdom. Within the United States, the National Park Service refers to the position as a park ranger. The U.S. Forest Service refers to the position as a forest ranger. Other countries use the term "park warden" or "game warden" to describe this occupation. The profession includes a number of disciplines and specializations, and park rangers are often required to be proficient in more than one.
Isle Royale National Park
The "Ranger III" is a ship that serves park visitors from Houghton, Michigan to Rock Harbor. It is operated by the National Park Service, and is said to be the largest piece of equipment in the National Park system. It carries 125 passengers, along with canoes, kayaks, and even small powerboats. It is a six-hour voyage from Houghton to the park. The ship stays overnight at Rock Harbor before returning the next day, making two round trips each week from June to mid-September. Briefly in the 2008 season, the Ranger III carried visitors to and from Windigo. This was not continued after four trips, due to low interest and long crossing times. In 2012, Park Superintendent Phyllis Green required the "Ranger III" to purify its ballast water.