The site is composed of a wide, roughly circular valley of the Zulegt River, which surrounds Tarialan soum, part of the Selenge River valley and large areas of private farmland. The site extends south to the Selenge River, and north, west and east as far as forested mountains. The valley is surrounded by hills, some of which are forested or with rocky outcrops. The site is bisected by a major road from Moron to Hutag Ondor. Threats include disturbance due to heavy traffic along the road, destruction of eggs and chicks by agricultural machinery, and, probably, poaching.
The site is important for Eastern Imperial Eagle Aquila heliaca (VU), Saker Falcon Falco cherrug (EN), Lesser Falcon F. naumanni (VU) and Great Bustard Otis tarda (VU). Hundreds of Demoiselle Crane Anthropoides virgo gather before autumn migration, with at least 1% of the flyway population of this species thought to occur annually.
Non-bird biodiversity: No information is available on other fauna and flora.
BirdLife International (2020) Important Bird Areas factsheet: Tarialan. Downloaded from http://www.birdlife.org on 28/09/2020.