Afraid I have to disagree with Charlie Wu and side more with June Anderson. The "pill" is clear around here, but I'd put it the whole name as /mont pill yer/, not -yar like June. read more
Charlie is absolutely right though that if you come across a French word in Vermont it almost certainly isn't pronounced en français, with the one notable exception being Charlotte (/shar lot/) and Vergennes coming closer than most. read more
I pronounce it the French way, because this was named for the French participation in the American Revolution. read more