What is the oldest tree when it was developed in Yellowstone National Park, USA? What is its diameter?

Yellowstone National Park discovered it in the autumn of 187. According to the act of the US Congress on March 1, 1872, Yellowstone

Yellowstone National Park [7]

Park was "approved as a public park and entertainment place for the benefit of the people", and at the same time "in order to keep all her trees, ore deposits, natural wonders and landscapes, and other scenery in their existing natural state without being destroyed". Yellowstone National Park first entered the World Heritage List in 1978. The park * * * has five entrances in the east, south, west, north and northeast, and is divided into five areas: Mammoth hot spring area in the northwest is mainly limestone steps, so it is also called hot step area; The northeast is Roosevelt District, which still retains the old western landscape; In the middle is the canyon area, where you can enjoy the Yellowstone Grand Canyon and waterfalls. The southeast is Huangshi Lake District, mainly with lakes and mountains; The west and southwest are geysers, with geysers, hot springs, steam, hot water pools, mud and jet holes. [8] The height of the park rises from 5,314 feet (1,62 meters) at the northern entrance (Gardiner, Montana) to 11,

In summer, the Yellowstone River is 358 feet (3,462 meters). There is the largest concentration of geysers in the world in Yellowstone National Park's vast natural forests, and more than half of the geysers in the world are here, especially the "Old Faithful Spring" which sprays water every hour. These geothermal wonders are evidence of the existence of the largest active volcano in the world. Yellowstone National Park is also a wildlife sanctuary, inhabited by wild animals such as buffalo, gray wolf, brown bear, moose, elk, bighorn rock sheep, antelope and takin. Yellowstone National Park takes the bear as its symbol. There are about 2 black bears, 1 grizzly bears and 25 wolves in the park. Another landscape in Yellowstone National Park is the yellowstone river, which surges out of Yellowstone Canyon and runs through Yellowstone National Park to Montana. Yellowstone river cut through the mountains and created the magical Yellowstone Grand Canyon. In the sun, the color of the two gorge walls changes from orange to orange, as if it were two tortuous ribbons. Due to the high terrain of the park, the Huangshi River and its tributaries cut deeply into the canyon, forming many waterfalls, which are spectacular.