The tomb of Pugu Yitu, also called the Shoroon Dov Kurgan, showed signs of attempted looting in ancient times.

The nearby tomb of Shoroon Bumbagar was never looted and therefore was found to hold far more artifacts including an intact door, many statues and wall paintings of people, dragons and temples, although there was no inscription.

The language of the inscription is Classical Chinese and relates the biography of Pugu Yitu the Dudu (都督) or Commander-in-Chief of the Jinweizhou (金微州) protectorate under the Tang dynasty's Jimi system.

In 647 the Pugu clan accepted the suzerainty of the Tang dynasty under the Jimi (loose rein) system and received the title Dudu (Commander-in-Chief).

It is notable that General Tonyukuk's Bain Tsokto inscriptions, dated 716, are found eastward in the valley of the same Tuul River in Nalaikh District of Ulaanbaatar.