They are in Helena MT and they are a CW100+ station which is the same as the national feed and matches CWPLS-E except delayed an hour
per their wikipage
Currently, KMTF rebroadcasts the CW satellite feed with minimal local branding, a practice common in low-population areas
edit2: a west coast feed of it is KMTRDT2
so in conclusion
CWPLS-E for East caost
KMTF for Mountain
KMTRDT2 for west coast