Cis·mon'tane adjective [ Prefix cis- + Latin mons mountain.] On this side of the mountains. See under Ultramontane . Found on http://www.encyclo.co.uk/webster/C/83
adjective on this (the speaker`s) side of the mountains; `a contest in Virginia between a cismontane and a tramontane people` Found on https://www.encyclo.co.uk/local/20974
In California and Baja California, the region between the Pacific coast and the ridge of the mountains. The desert side of the mountains is called "transmontane." Found on https://www.encyclo.co.uk/local/21284