IPA: /ˌɪntərˈmɒnteɪn/
KK: /ˌɪntərˈmɒnteɪn/
Located in the area between mountains.
The intermontane region is known for its unique ecosystems and landscapes.
Intermontane is formed from "inter-" (meaning between) and "montanus" (meaning mountain, from Latin "mons"). The word describes something that is situated between mountains.
Think of something that is 'between' ('inter-') 'mountains' ('montanus') — that's why intermontane refers to areas located between mountains.