The exact location of Khabarov's Achansk has long been a subject for the debate among Russian historians and geographers. A number of locations, both upstream and downstream of today's Khabarovsk, have been proposed since Richard Maack, one of the first Russian scholars to visit the region, identified Achansk in 1859 with the ruins on Cape Kyrma, which is located on the southern (Chinese) shore of the Amur, upstream of Khabarovsk. The most widely accepted point of view is probably that of Boris Polevoy, who believed that Khabarov's Achansk was located in the Nanai village later known as Odzhal-Bolon (), located on the left bank of the Amur, closer to Amursk than to Khabarovsk. One of his arguments was that both Khabarov's Achan (sometimes also spelt by the explorer as Otshchan, Отщан), and Wuzhala (乌扎拉) of the Chinese records of the 1652 engagement are based on the name of the Nanai clan "Odzhal" (Оджал), corresponding to the 20th-century name of the village as well. (The name of the clan was also written as "Uzala", as in the name of its best-known member, Dersu Uzala).