The document discusses the extreme environment of Mount McKinley and the body systems and protective measures needed for climbing it. Some key facts about Mount McKinley include that it is located in Denali National Park in Alaska and is the tallest peak in North America at 20,320 feet. The environment includes winds over 100 mph, winter temperatures between -30F and -70F, and the mental and physical limits of the body are reduced after only 2-3 weeks in the conditions.

1. Mount McKinley Biology II P.5 Matt Patterson, Tom Gilbert, Lisa Billie Mr. Weber Extreme Environment

2. Body Systems Respiratory -- Oxygen Mask Integumentary -- Thermal Clothes Cardiovascular – Warm clothes and aspirin (blood thinner)

3. Mt McKinley Facts First Climbed: 1913, Harper, Stuck, Tatum & Karstens Denali, Alaska (20,320ft/6,195m) Denali (The High One) -- Native Athabascan 600 miles from ocean (farthest is Mt. Everest 250 miles)

4. Facts (continued) 100+ mph winds in winter mental capacities reduced by 2/3 November - April temps. from -30F to -70F 2-3 weeks max body limit

5. Bibliography Alpine Ascents International Inc. (2007). Denali Alaska. Available online at: http://www.alpineascents.com/denali-map.asp . Destination360 . (2008). Alaska Denali National Park. Available online at: http://www.destination360.com/north-america/us/alaska/denali-national-park-mt-mckinley.php . U.S. Department of Interior. (2007). North America High Point. Available online at: http://americasroof.com/ak-entrance.shtml .