Nevada’s standard is statutory – “An operator shall take reasonable steps to minimize dangers and conditions within the operator’s control.” Nev. R.S. § 455A.160(3). But, “[a]n operator is not liable for the death or injury of a person or damages to property caused or sustained by a skier or snowboarder who knowingly enters an area which is not designated for skiing or snowboarding or which is outside the boundary of a snow recreation area. Nev. R.S. § 455A.160(2).