Running at high altitude can be a difficult experience for even the best trained athlete. The Rocky Mountain Half will definitely challenge you in this area. The air is thinner, your body handles fatigue differently, etc.
As we get closer to race day, we want to know about our friend Wendy over at One Tough Mother Runner who has an entire blog dedicated to tips on training for a high altitude race. It is a good read, and definitely worth your time.
Also check out our own free half marathon training guides.