Nevada is an open range state, see NRS 568.355 and 568.360, the latter says:
568.360. Duties of owners of domestic animals with respect to domestic animals upon highway. 1. No person, firm or corporation owning, controlling or in possession of any domestic animal running on open range has the duty to keep the animal off any highway traversing or located on the open range, and no such person, firm or corporation is liable for damages to any property or for injury to any person caused by any collision between a motor vehicle and the animal occurring on such a highway. 2. Any person, firm or corporation negligently allowing a domestic animal to enter within a fenced right-of-way of a highway is liable for damages caused by a collision between a motor vehicle and the animal occurring on the highway.
As a cattle rancher, I don't agree with this at all, all my range and my family's ranges are fenced.
568.355. “Open range” defined. As used in NRS 568.360 and 568.370, unless the context otherwise requires, “open range” means all unenclosed land outside of cities and towns upon which cattle, sheep or other domestic animals by custom, license, lease or permit are grazed or permitted to roam.