The answer is Col. Please note they can be known by other words, gap, saddle etc.
Pass
Lemhi pass
Col
Lemhi pass
Do you want it for the Mid-Day crossword?
Pass
A mountain gap is usually a naturally occurring gap between mountains. A mountain pass is usually a man made pass between mountains.
A mountain road is a twisty, usually narrow road which is high up in the mountains. A mountain pass is a road which crosses the mountains. Often, a mountain road leads to a pass, but not always.
Vail Pass
col or gap are used instead of mountain pass as well
The Chilkoot Pass is a mountain pass in the Coast Mountains. This mountain range is located from Alaska to British Colombia, Canada.
the Gothardt Pass in Switzerland