> The english and polish name referred to the mountain pass, not the road proper. 

I can't comment on Polish, but if you say "Stelvio Pass" to an English person, if they've heard of it, they'll think of the road, not the mountain pass itself.

If I do an anonymous web search from England https://duckduckgo.com/?q=Stelvio+Pass&t=ftsa&ia=web , 7 out of 8 front-page results are about the road.
