May I suggest reading more Geography and Geology,
oh young braggart?

Colorado sees snow every winter, So, highway engineers
did not make the grades short and steep. to make winter driving safer..

places that rarely if ever see snow have done things different..
some of the old roads in southern Britain
seem like they repaved the Roman ones without changing much..

Oh and the geology of the western US has been subject to much more recent
plate tectonics and uplifting, and Volcanism, than the much older
Appalachian range, which Ice-sheets eroded the sharp peaks off long ago..

So can you summit Mt Washington NH in that 52-19?
have named witnesses?