ABx wrote:High-mountain usually refers to Taiwan (aka Formosa) high mountain oolong. Taiwan is famous for having growing regions high up in the mountains, though you can get Chinese high-mountain oolong as well. The term "high mountain" really indicates particular characteristics more than anything. It's most noticeable in the green/jade oolongs, which are unusually viscous, umami, and sweet, because of how the plant grows at such altitudes.
Actually Abx, it literally means tea from a certain elevation. But yes, high mountain tea typically do share a common charactersistc. however, and unfortnately, the term has been used more inadequately by some vendors to sell more tea.