Denali, the Alaska mountain formerly known as Mount McKinley, is now officially 10 feet shorter, measuring 20,310 feet at its highest point, the U.S. Geological Survey announced Wednesday.
The previous measurement of 20,320 feet stemmed from a 1953 survey that used the technology of the time, officials said. The new elevation is the result of data collected from the mountain by climbers in June using technology that didn’t exist in the earlier survey, such as GPS instruments.
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