Denali's peak is 20,310 feet above sea level, making it the highest mountain in North America.
Denali is the third highest of the Seven Summits (the highest peaks of the 7 continents) following Mount Everest in Nepal and Aconcagua in Argentina.
Denali is located in Denali National Park and Preserve, which is more than 6 million acres in size. Denali National Park and Preserve is larger than New Hampshire's entire state.
Located in the Alaska Range in the interior of the U.S. state of Alaska, Denali is the centerpiece of Denali National Park and Preserve.
Denali has had several names including Bolshaya Gora (Russian), Densmore's Mountain, Mount McKinley, and finally Denali.
The upper half of Denali is permanently covered with snow and has five massive glaciers on its slopes. The longest glacier is the Kahiltna Glacier with a length of 71 kilometers (44 miles).
Prior to Russian or American settlement the Koyukon Athabaskan Natives referred to the mountain as Denali or Dinale.
The mountain is characterized by extremely cold weather. Temperatures as low as −59.7 °C (−75.5 °F) and wind chills as low as −83.4 °C (−118.1 °F) have been recorded by an automated weather station located at 5,700 meters (18,733 feet).
In 1896 Denali was renamed Mount McKinley.
In 1903, James Wickersham recorded the first attempt at climbing Denali, which was unsuccessful.
In 1917 Mount McKinley National Park was established.
In 1906, Frederick Cook claimed the first ascent, which was later proven to be false.
In 1975 the mountain was officially named Denali by the state of Alaska.
The first verifiable ascent to Denali’s summit was achieved on June 7, 1913, by climbers Hudson Stuck, Harry Karstens, Walter Harper, and Robert Tatum, who went by the South Summit.
In 1980 the size of Mount McKinley National Park was tripled and it name was changed to Denali National Park and Preserve.
The federal government still continued to call it Mount McKinley National Park.
In 1947, Barbara Washburn becomes the first woman to reach the summit while her husband Bradford Washburn becomes the first person to summit twice.
It took until 2015 for the U.S. government to recognize the name officially. President Barack Obama approved the change to Denali in August 2015.
In 1951, Bradford Washburn pioneered the West Buttress route, considered to be the safest and easiest route, and therefore the most popular currently in use.
Denali is taller than Mount Everest when calculated by measuring the distance from base to summit. Denali's summit is 18,000 feet from its base while Mount Everest's summit is 12,000 feet from its base.
In 1970, first solo ascent by Naomi Uemura.
Denali has two main summits - the South Summit and the North Summit.
In 1972, first descent on skis down the sheer southwest face, by Sylvain Saudan an extreme skier, dubbed “skier of the impossible.”
Different native names for Denali include Diinaalii, Diinaadhiit, Diinaazii, Dghelay Ka'a and Dghili Ka'a.
In 1979, First ascent by dog team achieved by Susan Butcher, Ray Genet, Brian Okonek, Joe Redington, Sr., and Robert Stapleton.
The first attempted climb of Denali took place in 1903, by Judge James Wickersham. This route in particular would not be ascended successfully until 1963, due to danger of avalanches. James Wickersham attempted to climb the mountain via Peters Glacier and the North Face. It is now known as Wickersham's Wall.
In 1993, Joan Phelps is the first blind climber to reach the ascent.
An explorer named Dr. Frederick Cook claimed to have made the first successful climb in 1906 but was later proven to have been untrue.
In 2001 Galen Johnston, 11, becomes the youngest person to reach the summit.
Denali's main summit was first successfully reached in 1913 by Walter Harper, a native of Alaska.
In 2013, Alaska resident Tom Choate, 78, breaks the record as the oldest person to reach the summit.
Denali is a popular mountain for climbers, despite its cold climate. Almost 60% of climbers reached the top in 2003, but by this year almost 100 climbers had lost their lives while attempting to reach the top.
In June 2015, a survey team led by Blaine Horner placed two global positioning receivers on the summit to determine the precise position and elevation of the summit. The summit snow depth was measured at 4.6 meters (15 feet). The United States National Geodetic Survey later determined the summit elevation to be 6,190 meters (20,310 feet), not 6,194 meters (20,320 feet), as measured in 1952 using photogrammetry.
To reach Denali's top it can take two to four weeks and most climbers use the West Buttress Route.
In a typical year 1,300 people try to climb Denali.
Barbara Washburn was the first woman to reach the summit of Denali, in 1947.
An estimated 32,000 climbers have attempted Denali with about a 50% success rate.
In 2013 Tom Choate, a 78 year old climber, became the oldest man to reach Denali's summit.