Wyo. Stat. § 1-1-123.2

(a) As used in this act:

(i) "Freestyle terrain" includes terrain parks and terrain features such as jumps, rails, half pipes and other constructed and natural features found in terrain parks;

(ii) "Inherent risk" with regard to skiing in a ski area means those dangers or conditions which are part of the sport of skiing, including:

(A) Changing weather conditions;

(B) Falling or surface snow conditions, whether natural or man-made, as they exist or change;

(C) Surface or subsurface conditions including bare spots, forest growth, rocks, stumps, streambeds, cliffs, extreme terrain, trees or other natural objects;

(D) Collisions or impacts with natural objects such as the objects specified in subparagraph (C) of this paragraph including encounters with wildlife;

(E) Impact with ski lift towers, signs, posts, fences or enclosures, hydrants, water pipes or other man-made structures and their components subject to W.S. 1-1-123.3(k);

(F) Variations in steepness or terrain, whether natural or as a result of ski trail or feature design, or snowmaking or grooming operations such as roads, freestyle terrain, jumps and catwalks or other terrain modifications; and

(G) Collisions with other skiers.

(iii) "Ski area" means the ski trails and other places within the boundary of a ski area under the control of a ski area operator and administered as a single enterprise within the state;

(iv) "Ski area operator" means a person having the responsibility for the operations of a ski area and the owners, partners and members, managers, employees, agents, volunteers, board members, representatives, affiliates and assigns of the person. "Ski area operator" includes an agency of the state or a political subdivision thereof;

(v) "Ski area vehicle" means a vehicle used in the operation and maintenance of a ski area which is owned by or under the direction and control of the ski area operator such as a snowmobile, all-terrain vehicle, snow grooming vehicle, sled and other similar vehicle;

(vi) "Ski lift" means a chairlift, gondola, tramway, cable car or other aerial lift and any rope tow, conveyor, t-bar, j-bar, handle tow or other surface lift used by a ski area operator to transport skiers;

(vii) "Ski trail" means a trail, slope, run, freestyle terrain, competition terrain, tree skiing area, tubing park area or other area at or near a ski area designated by the ski area operator to be used by skiers for the purpose of skiing;

(viii) "Skier" means a person who is using a ski area for the purpose of skiing;

(ix) "Skiing" includes sliding downhill or jumping on snow or ice on skis or a toboggan, sled, tube, snowbike, snowboard or other device;

(x) "This act" means W.S. 1-1-123.1 through 1-1-123.5.