Three Sheriff deputies and three Utah Highway Patrolmen responded to the incident.
The horse was uninjured and was put back behind the fence, according to Summit County Sheriff's Office Spokesman Ron Bridge.
The car was damaged and towed, but the driver sustained no injuries.
According to the Utah State livestock laws, livestock may not be allowed to stray or remain unoccupied on a highway.
If a driver chooses to file a lawsuit against an owner after colliding with a domestic animal on the highway, there is no presumption the collision was due to owner negligence.
There were no other reported Thanksgiving Day travel incidents.
-- Caroline Kingsley