Chilkoot Trail National Historic Site protects the historic gateway to the Yukon once tread by Tlingit First Nation traders and Klondike gold rush prospectors. The Chilkoot Trail was designated a national historic site because of the role it played in the mass movement of people to the Yukon during the Klondike Gold Rush. The Chilkoot Trail has been officially designated by Canada and the United States as a component of the Klondike Gold Rush International Historical Park. Pets are not recommended on the trail. However, if you choose to bring your pet, they must be leashed and cleaned up after at all times.