I can now confirm what most of you already knew – that bighorn sheep DO, in fact, exist.
Despite the warning signs I have seen in lots of places over the years, I’ve just been looking in the wrong place.
About 1030 this morning I saw four, young, bighorn sheep walking calmly down both the north and southbound lanes of British Columbia Highway 95, smack dab in the middle of a little town called Radium Hot Springs!



Of the three lead lambs, the head of the flock started walking right down the middle of the southbound slow lane, while the next two lined up right on the white line separating the fast and slow lanes. I followed them in that configuration for about a quarter mile.
After I had s l o w l y passed the fourth one in line (the single one, in the first two photos) I lost track of it, but I later saw that it was still bringing up the tail end of the line.

They were in no big hurry and seemed completely oblivious to the vehicles on the road and people taking photos.
Naming conventions for bighorn sheep: Ram, Ewe, Lamb, Flock or Drove