Loveland Pass

Colorado Rockies, USA. It's said to be the highest all-season pass in the world. There are, of course, much higher passes in the Himalayas and Andes, but presumably they're not kept open in the winter. The highway it's on, on the right, is US 6; on the left, beyond the sign, a little bit of Interstate 70 is visible. I-70, with the Eisenhower Tunnel, bypasses Loveland Pass, so US 6 here is now mostly just a scenic route. Except for trucks carrying hazardous cargos, tanker trucks especially, which aren't allowed in the tunnel. They still have to go over Loveland Pass! It's not a section of highway you'd put the rookie drivers on. The need for the hazmat bypass, as well as access to some ski resorts in the vicinity, is probably why they bother to keep the pass open in the wintertime.
In case you're wondering about the "US Dept of Agriculture" on the sign--we're on the boundary between Arapaho and White River National Forests. Over a century ago the US Forest Service was transferred to the Dept. of Agriculture in the first wave of "conservation" reforms. The idea was that trees are a "crop", y'see--