ATMs -- There are numerous ATMs in the park: at Old Faithful Inn, Old Faithful Snow Lodge, Canyon Lodge, Lake Yellowstone Hotel, Mammoth Hot Springs Hotel, Grant Village, and Canyon Lodge, as well as Yellowstone General Stores throughout the park.
Car Trouble & Towing Services -- If you have car trouble, you'll find car-repair shops in Old Faithful, Canyon Village, Fishing Bridge, and Grant Village. Call the park's main information line (tel. 307/344-7381) 24 hours a day if you need to be towed.
Emergencies -- Call tel. 911 or the park's main information number (tel. 307/344-7381), which is staffed 24 hours a day.
Gas Stations -- You can purchase gasoline at Old Faithful, Canyon Village, Grant Village, Lake Village, Mammoth Hot Springs, Fishing Bridge, Bridge Bay, and Tower Junction.
Laundry -- There are laundry facilities at Lake Lodge, Old Faithful Snow Lodge, Fishing Bridge RV Park, Canyon Village Campground, and Grant Village Campground.
Medical Services -- There are three medical clinics in the park: at Mammoth Hot Springs (tel. 307/344-7965), Old Faithful (tel. 307/545-7325), and Lake Yellowstone (tel. 307/242-7241), where there is a pharmacy and a small hospital. The Lake and Old Faithful clinics are open daily from May to early fall, while the Mammoth clinic is open weekdays year-round and daily in summer.
Permits -- You can obtain fishing and backcountry permits at most visitor centers.
Post Offices -- All the major visitor centers in Yellowstone have post offices (Mammoth, Old Faithful, Grant Village, Lake Village, and Canyon Village).
Supplies -- Yellowstone Park General Stores are located in all the park villages, with groceries, film and camera supplies, camping gear, and souvenirs.
Weather Updates -- For weather updates and road conditions, call the park's main information number (tel. 307/344-7381), which has recorded information.