The document discusses the climate and seasonal changes in the Rocky Mountains. It notes that winters bring deep snow, high winds, and frequent blizzards, with temperatures dropping below -35 degrees Fahrenheit. Springs have unpredictable weather that can be wet or dry, cold or warm. Summers are sunny in the mornings with afternoon thunderstorms and clear nights. Falls have cool, crisp days with decreasing precipitation and wind. The Rocky Mountains span several states including British Columbia, Montana, Utah, Wyoming, and Colorado. The forests in the Rocky Mountain region receive over 20 inches of precipitation annually on average. Pine beetles have killed many trees, moving from forests on the west side of Rocky Mountain National Park to those on the east