At 13,380 feet, or 4,078 meters, on Pikes Peak, conditions are close to the harsh alpine environment above the forest, about 2.5 miles above sea level, where there is 40% less oxygen than below. The thinner atmosphere can cause dizziness, shortness of breath, and faster sun burning. This upper part of Pikes Peak has moisture-robbing winds, zero temperatures, massive snow packs, thin soil, wind speeds up to 120 miles per hour, temperature extremes from -60 F to 64 F, and snow drifts up to 20 feet deep.