Now open: West Entrance to Madison, Mammoth to Old Faithful, Norris to Canyon. The road from the North Entrance (Gardiner) to the Northeast Entrance (Cooke City) is open year-round.
For up-to-date information consult the map above, call (307) 344-2117 for recorded information, or sign up to receive Yellowstone road alerts on your mobile phone by texting "82190" to 888-777 (an automatic text reply will confirm receipt and provide instructions).
Open roads may close temporarily due to inclement weather and other reasons.
Open roads are not gated at night: people may enter/exit the park 24 hours a day, seven days a week.