Unidentified Earth #61

Time for this week's puzzler! First, the usual housekeeping. UI 60 broke a streak of as-yet Unidentified entries, as Dave in Rocha pegged it fairly quickly as the giant letter 'M' that is maintained on the side of a mountain in Montana, overlooking the University of Montana in Missoula, MT. UIs 58 and 59 are still without guesses, though! Wow. I can imagine why no one would want to visit UI 58, as it is a place where one would find more cheer in a graveyard. UI 59 is rated as one of North America's most scenic drives -- when the road is open, that is.

So here's the new one:



Where are we? Rot-13 your guesses, folks!