A West Yellowstone snowmobile guide is facing charges after one of his riders was seen on the Old Faithful webcam riding on a boardwalk next to the famous geyser on Saturday.
Park officials would not identify the guide, who also did not have a valid driver's license. His court hearing has not been scheduled.
The incident occurred as Yellowstone and several other national parks were allowed to stay open even though most government workers had been furloughed after the U.S. Senate didn't approve a continuing resolution to fund government operations on Friday night. The Washington Post first reported on the incident in Yellowstone.
A couple of park rangers were apparently on duty as they cited the guide and also turned back errant snowmobilers at the East Entrance near Cody, Wyoming, who did not have a guide. Another snowmobiler at Old Faithful was also cited for entering without a guide.
Apparently no resource damage occurred during the shutdown.