Pete Monte of Forest Grove, Oregon, recently climbed the highest peak in North America, Denali (also known as Mt. McKinley). Pete carried a Vernier LabPro, temperature probe, and a Gas Pressure Sensor all the way to the (20,320 ft, 6,194 m). He recorded temperatures well below freezing (in June), and pressure down to 54 kPa – approximately half of standard atmospheric pressure.