Timur Zhalsarayn was born in 1928 in the village of Suduntui, Aginsky District, to Polon Ukhin, a poor shepherd.
In the early 1950s, Timur Ukhinovich started his teaching career at Aginsky secondary school, where he worked for many years.
Zhalsarayn identified and indicated the geographical location of the confluence of the Yenisey, Lena and Amur river systems on the Yablonovy Mountains in Transbaikalia Krai near the city of Chita.
Zhalsarayn spoke[3] about the unique geographical location of the Chita Oblast in the catchment areas of the three largest rivers in the world.
During the scientific-practical conference Timur Ukhinovich Zhalsarayn - Pedagogue, Geographer, Local Historian, Researcher held in April 2010 in Aginsky, it was stated that Timur Ukhinovich Zhalsarayn's name deserves to be mentioned alongside other great pedagogues such as Zankov and Amonashvili.
[4] Recognising the scientific significance of Zhalsarayn's discovery, the Zabaykalsky branch of the Russian Geographical Society recommended the creation of a natural monument called Watershed Mountain on the Yablonovy Ridge.
Siberia, the "Apple Ridge – the great watershed of the two world oceans and the three largest rivers of the planet: Lena, Amur and Yenisei" was selected as the signature landmark of the Transbaikal Territory.
[11] It is important to note that the business card of the Zabaikalsky Krai is approved by the responsible editors of the publication, who are well-known Russian geographers.
Zhalsarayn served as the foundation for the brands of Zabaykalsky Krai, proposed by the Chairman of the Transbaikal Regional Branch of the Russian Geographical Society Y.T.
[15] In 2010 the first conference Timur Ukhinovich Zhalsarayn - teacher, geographer, local historian, researcher was held in Aginskoye settlement.
In 2013, the Aginsky National Museum named after Gombozhab Tsybykov hosted the second scientific and practical conference titled Timur Ukhinovich Zhalsarayn - Teacher-Innovator, Researcher, Local Historian, which was dedicated to the 85th anniversary of the birth of the man who discovered the watershed on the Yablonovy Ridge.
[18] Timur Ukhinovich served as the prototype for the teacher in Zhamyan Baldanzhabon's book The Secrets of Alkhanai, which is part of the Buryat literature curriculum for secondary school.