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.
Parks Canada
Parks Canada employs Park Wardens to protect natural and cultural resources, conduct campground patrols and other targeted enforcement activities, and to ensure the safety of visitors in national parks and marine conservation areas. They are designated under section 18 of the "Canada National Parks Act" and have the authority of peace officers. They carry firearms and have access to other use of force options.