Alaska imposes statutory duties and obligations on both ski area operators and skiers. A skier cannot recover for injuries sustained as a result of inherent risks of skiing which include “changing weather conditions; snow conditions as they exist or may change, including ice, hard pack, powder, packed powder, wind pack, corn, crust, slush, cut-up snow, and machine-made snow; surface or subsurface conditions including bare spots, forest growth, rocks, stumps, streams, streambeds, and trees, or other natural objects, and collisions with natural objects; impact with lift towers, signs, posts, fences or enclosures, hydrants, water pipes, other man-made structures, and their components; variations in steepness or terrain, whether natural or as a result of slope design, snowmaking or grooming operations, including roads and catwalks or other terrain modifications; collision with other skiers; and the failure of skiers to ski within their own abilities”. Alaska Stat. § 05.45.200. The risk of a skier/skier collision is not a risk assumed in an action against another skier. Alaska Stat. § 05.45.100(a). If an injury is caused by a combination of inherent danger and skier negligence, comparative negligence principles apply. See Hiibschman By & Through Welch v. City of Valdez, 821 P.2d 1354, 1364 (Alaska 1991).