Hi Sypher....sorry this took so long, but I got really tied up this morning.
RE: My entry of Tibetan-Qinghai-Xizang Highlands
First, some 'Mountain Terminology'
MOUNTAIN. A mountain is a landform that rises prominently above its surroundings. It is generally distinguished by steep slopes, a relatively confined summit, and considerable height. The term mountain has topographic and geologic meanings. It generally refers to rises over 2,000 feet (610 meters).
HIGHLANDS: " Meaning of the concept of mountains. Many of the agricultural research institutions have used the term highlands (and not mountains although in some cases the terms highlands and mountains have been used interchangeably), defined by altitudinal delineations."
"The African Highlands Initiative (AHI) defines highlands as land above 1500 meters altitude with an average annual rainfall of at least 1000mm, but has accepted in principle to vary the definition according to one's purpose, perspective and country. For long, the International Livestock Research Institute (ILRI) has principally delineated highlands by using the 1500m criterion and included all land above this altitude regardless of the rainfall because, low rainfall is not considered a limitation to raising livestock as much as for crops."
PLATEAU: "A plateau is distinguished by its flat surface and a mountain by its greatly irregular surface. Most mountains are peaked, but many have flat tops. (plateau....aka Party ledge) A somewhat larger ledge used to rest (and party !) during a particularly hard or long climb. Sometimes used to refer to the belay station on a multipitch climb."
"Plateau mountains occur in series when the folds of a mountain chain pass abruptly into the horizontal strata of a basalt plateau that is largely denuded of trees and eroded." Examples occur in association with major plateaus of the world, such as the Colorado and Tibet plateaus and the Altiplanos of South America.
CORDILLERA: A gigantic system of mountain ranges often consisting of a series of parallel chains.
RANGE: Linear mass of mountains, mountainous land, or a long sequence of mountains belonging to a single geologic unit.
SUMMIT: The top of a mountain or rock.
CB: "Sypher--I don't know how precise you want to be with this week's topic, but BagLady's entry--identified as "Highlands" ---is neither a specific mountain or a particular mountain range. Highlands are mountainous (or hilly) areas of a country. That is not the same as a specific mountain range."
Defense: (See above definition of Highlands)
"Asia's great expanse from the equatorial tropics to the arctic results in a continent of extreme contrasts. Asia contains virtually every kind of natural landscape. Roughly half the continent consists of highlands, and about 8 percent is more than 10,000 feet (3,000 meters) above sea level. Asia's average elevation exceeds that of all the other continents except Antarctica."
PINHEAD: "Well I'm gonna challenge BagLady's entry for today. The 'Qinghai-Xizang' is a plateau in the Tibetan Highlands.
I can find no reference to support 'Tibetan-Qinghai-Xizang Highlands'.
As far as I can tell, they're two separate things; the plateau is in the highlands."
Defense: "Dominating the Asian landscape is the huge Tibetan-Qinghai Highlands, which occupy much of western China. This plateau is the highest and largest in the world. According to some geologists it was created by movements of the Earth's crust between India and Tibet that forced the plateau upward. Geologists say it is still rising.
In the western part of this plateau are the Pamir Mountains, called the Roof of the World, where China, Tajikistan, Pakistan, and Afghanistan meet. From this mountain knot, lofty ranges spread outward in many directions. The Hindu Kush runs southwest through Afghanistan. To the northeast extends the Tian Shan. The Karakoram runs southeast and merges into the Himalayas, the highest mountain range in the world. Mount Everest, the tallest peak (29,023 feet; 8,846 meters), is located there, as are the other eight highest peaks of the world. The Himalayas are a favorite challenge for mountain climbers.
The largest area of highlands in Asia thus is connected with the Tibetan plateau. Most of western and northern China, as well as all of Mongolia and much of southern Siberia, is dominated by mountains and plateaus."
"Glaciers distant from the vast arid regions in central Asia, such as those in the Himalaya, Karakoram and south-eastern Tibetan Qinghai-Xizang Plateau, will likely hold the best records detailing the annual variation in the strength of the Indian and Plateau monsoons.
CB "With regard to Pinhead's challenge of the "plateau" description of BL's entry--a plateau is a flat area. So, how could a mountain also be a flat area? Sounds like BG's entry is a flat area in an otherwise mountainous region--but that doesn't make it either a specific mountain or a particular mountain range."
Again, please see above definitions.
It's your call as to the validity of my entry. 
Also, the rules of the game indicate that the player must use the last letter of the previous entry, regardless of whether that letter is right or wrong (until you either allow or disallow said letter). Chelseabelle used "W" instead of "N". (Actually from what I can find, the correct spelling of the entry is "Worcestershire Beacon").
Thanks for reading....sorry if this entry is too long!
BL
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Every great oak tree was once a nut that stood its ground.