James Hilton (novelist) the occasional Tibetan monks in saffron robes. The name "Shangri-La" has become a byword for a mythical utopia, a permanently happy land, isolated from the world. After the Doolittle Raid on Tokyo, when the fact that the bombers had flown from an aircraft carrier remained highly classified, U.S. President Franklin D. Roosevelt told the press facetiously that they had taken off from Shangri-La. The Navy subsequently gave that name to an aircraft carrier, and Roosevelt named his Maryland presidential retreat "Shangri-La". (Later, President Dwight D. Eisenhower renamed the retreat Camp David after his grandson, and that name has been used
Shangri-La cultural context for Hilton's story. Places like Sichuan and Tibet also claim the real Shangri-La was in its territory. In 2001, Tibet Autonomous Region put forward a proposal that the three regions optimise all Shangri-La tourism resources and promote them as one. After failed attempts to establish a China Shangri-la Ecological Tourism Zone in 2002 and 2003, government representatives of Sichuan and Yunnan provinces and Tibet Autonomous Region signed a declaration of co-operation in 2004. Also in 2001, Zhongdian County in northwestern Yunnan officially renamed itself Shangri-La County. American explorers Ted Vaill and Peter Klika visited the Muli area of