Fairmont RV Park, Montana - Rates, Dates, Payment methotds, Discounts RATES, DATES, DISCOUNTS, PAYMENT METHODS: We are seasonal, opened from April 15-October 15 store hours are generally from 8am to 8pm. Pull Thrus $33-35 Back Ins $30 Tent $20 Teepees $25 Cabins $75 Dry Camping $20