Here's a little more info on a few of the areas:
Bu Lang Mountain: There are 360,000 Bulang people living in Xishuangbanna. The largest concentration live in villages located around Menghai county's Bulang mountain. They inhabit an area that enjoys a moderate climate, fertile soil, frequent fog, and plentiful rainfall -- conditions well-suited for growing tea. As a result, Bulang people maintain large tea forests on Bulang mountain. Their tea production has made this remote mountain area an important producing center for Pu-erh and has made Bulang people experts at the art of tea making.
Pasha Mountain: Pasha in the Aini language means tall and straight forest. According to local people, Pasha was settled more than 300 years ago by people from the Jinghong and Damenglong area of Xishuangbanna. At that time the area had no villages or cultivated land within 10 kilometers and was dominated by vast mountains filled with giant ancient tea trees. The Aini people, through foresight and diligent work, created their home on this land, relying on tea to earn a living. Pasha Ancient Tea Mountain is located in Menghai county to the Southwest of Gelanghe tea mountain. The highest elevation is 1850 meters, with an average of 1700 meters (the sameas Lao Banzhang mountain). There are currently around 1000 acres of tea under cultivation. One hundred thirty years ago, the current Banzhang settlement was founded by residents of Pasha who moved there to cultivate tea. Pasha Ancient Tea Mountain is shrouded in fog year-round and features abundant rainfall. The tea producing area lies between 1600 and 1800m elevation and is in an area of luxuriant growth with rich ground cover and fertile soil. Tea tree growth is extremely productive, with an early budding period and long harvest periods, producing large healthy tea leaves with striking silver tips -- excellent quality tea. Pasha organic arbor tea is made from selected ancient arbor leaves grown at an elevation of 1700 meters on Pasha Ancient Tea Mountain in Menghai county.
You Le Mountain: The Jinuo ethnic group, also known as Youle, is unique to Yunnan. They primarily inhabit Jinghong municipality's Jinuo mountain. The meaning of "Jinuo" in the Jinuo language is "descendants of the maternal uncle," reflecting the fact that Jinuo society was once matriarchal. Jinuo people tend to live in open space cleared from virgin forest. Their grass houses are built to resemble Kong Ming's hat [note: Kong Ming is another name for 3rd century Chinese hero Zhuge Liang]. They have a long history of tea growing, believing tea was given to them by Kong Ming. Consequently, they revere him as "father of tea." Their primary cash crops are tea and rubber. This cakes is made from raw tea material grown in Jinuo mountain's Longpa ancient tea plantation. The tea is carefully processed using traditional fermentation techniques.
Lao Ban Zhang:
This Lao Ban Zhang is from remote area near Banzhang mountain to obtain the leaves for these bricks. The leaves are from trees 400 to 500 years old that were heavily cut during the Cultural Revolution. The trunk is still intact and in the 35 years since the trees have continued to grow and produce excellent quality Pu-erh. The price of premium Ban Zhang raw material has surpassed other tea mountains, because it is the most sought after.