"The name of Pu 'er tea is more important than the world. Pu 'er tea belongs to the six major tea mountains, namely Aule, Gordon, Yibang, Mangzhi, Mangzhuan, Manza and Mansa, which are 800 miles a week. Among them, except Youle Chashan, which now belongs to Jinghong City, the other five are in Mengla.

The six tea mountains are connected by mountains and rivers, with similar topography, climate and vegetation. Among the six tea mountains, the highest elevation is 2023 meters, located in Heishuiliangzi, Yiwu tea area, and the lowest elevation is 565 meters. Located on the water surface of Man Pelloso River (Rendu) in Xiangming tea area, with a height difference of1.458m.. The lateritic red soil and red soil in these lands are deep and fertile, and the soil pH value is mostly between 4.5 and 6.5, which is very beneficial to tea trees.

At the same time, the six major tea mountains are located in the south subtropical zone, with an annual average temperature of 19℃-20℃, an annual accumulated temperature of 6000℃-7000℃, an average temperature of about 23℃ in the hottest month, a minimum temperature of 10℃- 13℃ and an extreme minimum temperature of 0℃-3℃. Plants are evergreen all year round, and flowers can be seen every month, which is not obvious all year round. There is a rainy season and a dry season every month.

Thirdly, the annual rainfall of the six major Chashan Mountains ranges from 1.700 mm to 2 100 mm, with an average annual rainfall of around 1.800 mm, and more in April to 1.500 mm, accounting for about 80% of the annual rainfall.

The sunshine is short and the fog is long, and the annual sunshine hours reach 1, 880- 1, 950 hours. From mid-autumn to next year in Meng Chun, regardless of mountains and ravines, fog is often scattered in the afternoon, especially in autumn and winter. When you stand on the top of the mountain and have a bird's eye view, you can see small peaks in the vast sea of clouds, which is very spectacular.