Billings, MT – Visits to Yellowstone and Grand Teton National Parks will cost more next year. Seventeen sites in the National Park Service's Intermountain Region will see certain entrance fee increases. Agency spokesman James Doyle says the new money will be earmarked for such costs as building restrooms or visitor centers, and maintenance of interpretive programs. Doyle says increased visitation has put added strain on services that visitors have come to expect. Most of the revenue from the added fees will stay with the individual parks.