The Island Park Caldera is sometimes referred to as the First Phase Yellowstone Caldera or the Huckleberry Ridge Caldera. The youngest of the hotspot calderas, the Yellowstone Caldera, formed 640,000 years ago and is about 34 miles (55 km) by 45 miles (72 km) wide.he Island Park Caldera is sometimes referred to as the First Phase Yellowstone Caldera or the Huckleberry Ridge Caldera. The youngest of the hotspot calderas, the Yellowstone Caldera, formed 640,000 years ago and is about 34 miles (55 km) by 45 miles (72 km) wide.
After successfully ending American fighting in Vietnam and improving international relations with the U.S.S.R. and China, he became the only President to ever resign the office, as a result of the Watergate scandal. Reconciliation was the first goal set by President Richard M. Nixon.
Richard Nixon meets with Mao Zedong in Beijing, February 21, 1972. U.S. President Richard Nixon's 1972 visit to the People's Republic of China was an important step in formally normalizing relations between the United States (U.S.) and the People's Republic of China (PRC).espite this, in 1972 Nixon became the first U.S. president to visit mainland China while in office. Ulysses S. Grant visited China on a world tour after leaving office.