FARMINGTON A Farmington man pleaded guilty Thursday to assaulting a federal employee, according to a press release from the U.S. Department of Justice.

Charles L. Palmer, 23, faces a sentence of up to 14 months in prison, as well as a fine of up to $10,000 and restitution to the federal employee. He will also be required to have an ignition interlock device for the next two years.

Palmer was drinking beer on May 25, 2013, in the Glade Run Recreation Area, which is managed by the U.S. Bureau of Land Management, according to the press release.

He was with about 30 other people. When two marked patrol cars with flashing emergency lights approached the group, he got into his truck and began to drive away.

A uniformed BLM ranger ordered Palmer to stop, but Palmer ignored the ranger and struggled with the federal employee while the truck continued to move forward, according to the press release.

A tree knocked the ranger to the ground as the truck drove passed the tree, and Palmer accidentally ran the ranger over with his truck, according to the release.