Are the Rocky Mountains in Yukon? No—They End in Northern British Columbia

No. The Rocky Mountains terminate in the Liard River basin of northern British Columbia (~59°N). The Yukon Territory lies north of the Rockies, separated by the Tintina Trench and the Mackenzie Mountains (a distinct range).

Range Boundaries

• Southern terminus: Sacramento Mountains, New Mexico (~33°N).
• Northern terminus: Mount Robson area / Liard River, BC (~59°N).
• Length: ~4,800 km (3,000 mi).

What’s in Yukon Instead

• Mackenzie Mountains (NWT/Yukon border) – sedimentary, lower, rich in zinc-lead.
• Ogilvie Mountains – ancient, rounded.
• St. Elias Mountains (SW Yukon) – coastal, icefields, Mount Logan (5,959 m) – Canada’s highest.
• Tintina Trench – major strike-slip fault separating Rockies from northern cordillera.

Why the Confusion?

All are "the Canadian Rockies" colloquially, but geologically distinct. The Northern Rocky Mountains** ecoregion (WWF) includes parts of southern Yukon, but the Rocky Mountain range proper does not enter Yukon.

If you’re in Whitehorse, you’re in the Yukon Plateau, not the Rockies.