There are currently 10 operational border crossings between Mongolia and Russia: five open only to Mongol and Russian nationals, three open to all, one open to freight, and one to passenger trains.
The current Northern Mongolian border was established in 1911, but at that time, Mongolia shared it with two countries, the Tuvan Republic and the Soviet Union. Now, it is shared only with Russia, after the Soviet Union annexed the Tuvan Republic in 1944. The Tuvan section of the Mongolia/Russia border has always been problematic due to cattle thefts across the border and a thriving smuggling trade, subsequently Border Crossing No. 487 was considered particularly challenging.
Border Crossing No. 487 is set deep inside thousands of hectares of Siberian forest, both on the Mongolian and Russian side. On the Mongolian side, very few hamlets can be found across this desolate landscape, and the infrastructure is extremely poor. What is more, winter brings abundant snowfall and subarctic temperatures (reaching -55 degrees F), making these places reachable only by horses and the sturdiest 4×4 vehicles.
Since its closure, Border Crossing No. 487 has become a destination for a trickle of local tourists. The two posts delimitating the Mongol and Russian territories are set about 10 feet apart, and a white stump of a post was placed in the middle to demarcate the exact border point. It is a simple sight, but in historical and geographical terms, it is a truly remarkable place. (atlasobscura)