Yellowstone National Park urges travelers to stay informed about road status and weather that can change quickly with heavy snow and hazardous driving conditions.
An energy policy that was challenged by the lawsuit was repealed in March by the state Legislature, and Montana's attorney general wanted that part of the case dismissed.
The skeleton was built from specimens retrieved from three sites in the Hell Creek and Lance Creek formations of Montana and Wyoming between 2008 and 2013.
The Hughes brothers were near the front of a group that pursued a Capitol Police officer up the stairs before he led the mob away from the Senate floor.