They travelled up the Stewart River and crossed the Mackenzie Mountains.
他们渡过了斯塔沃特河, 翻过了麦肯瑟山脉。
英语百科
Mackenzie Mountains
The Mackenzie Mountains are a mountain range forming part of the Yukon-Northwest Territories boundary between the Liard and Peel rivers. The range is named in honour of Canada's second prime minister, Alexander Mackenzie. Nahanni National Park Reserve is in the Mackenzie Mountains.