Oltoyi Mugul

Oltoyi Mugul, sistemai kuhiest dar RKhM va Khitoy. Az Shimoli Garb ba Janubi Sharq taqriban 1000 kilometr tul kashidaast, barash 150—300 kilometr. Joi az hama balandash 4362 metr (kuhi Munkh- Khayrkhon-Ula). Az yakchand qatorkuhhoi mutavozi iborat ast, ki onhoro vodihoi chuquri tektoniki burida guzashtaand. Teppadoi kuhho aksar ba pushtakuh monand buda, jo-jo piryakhho (kalontarinash Potanin) do­rad.

Oltoyi Mugul asosan az jinshoi sinni paleozoy (varaqsanghoi kristalli, porfiru porfiritho va granitho) tarkib yoftaast. Landshafti nishebihoi sernami janubi garbi — beshagiyu margzori (darakhtoni koj, sharbin va gayra), domanai kuhho— dashti, teppahoyash — margzori kuhi; landshafti nishebihoi shimoli sharqi — dashtiyu nimbiyoboni, pastkhamihoi baynikuhi — nimbiyoboni.