Ubsunur Hollow (Paperback)

High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Ubsunur Hollow (also spelled Ubsu-Nur) is a fragile mountain basin or depression located on the territorial border of Mongolia and the Republic of Tuva in the Russian Federation. It is part of a combination of raised lands and depressions located throughout the Tannu-Ola and Altai mountainous regions. Here, the world's most northern desert meets the northern hemisphere's most southern tundra zone.