cismontane adj 1: on this (the speaker's) side of the mountains; "a contest in Virginia between a cismontane and a tramontane people" [ant: {tramontane}, {transmontane}]
Cismontane \Cis*mon"tane\, a. [Pref. cis- + L. mons mountain.] On this side of the mountains. See under {Ultramontane}. [1913 Webster]