STATELINE, Nev. – Alpine action and western heritage will collide at a professional level March 5-7 when Pro Skijor comes to Lake Tahoe, bringing galloping horses, riders and skiers together as they navigate a snow course of gates, jumps, rings and other obstacles with split-second precision. Rooted in Scandinavian history, skijoring began as a mode of transportation dating back hundreds of years, in which skiers were pulled by reindeer. It ent…