Denali, the Alaska mountain formerly known Mount McKinley, is now officially 10 feet shorter, measuring 20,310 feet at its highest point, the U.S. Geological Survey announced Wednesday. The climb to gather the data began June 15 and involved one climber from the University of Alaska Fairbanks and three climbers from the private survey company CompassData Inc., USGS spokesman Mark Newell said. The change comes just days after the Obama administration announced its decision to bestow the traditional Alaska Native name to the mountain on the eve of president's visit to Alaska this week.