North Entrance Road Historic District
The North Entrance Road Historic District comprises Yellowstone National Park's North Entrance Road from Gardiner, Montana to the park headquarters at Mammoth Hot Springs, Wyoming, a distance of a little over five miles (8 km).The road includes the Roosevelt Arch at the northern boundary of the park and winds through rolling terrain before crossing the Gardner River and joining the Grand Loop Road.The road was planned in 1883 by Lieutenant Dan Kingman of the U.S. Army Corps of Engineers and later on improved by Captain Hiram M. Chittenden of the Corps.,.The first permanent entrance station to house rangers checking vehicle entering the park was constructed in 1921.[7] On October 30, 2022, Old Gardiner Road was opened to regular visitor traffic between Gardiner and Mammoth Hot Springs, to bypass the damaged North Entrance Road.