Three-Country Cairn is a cairn of stones that marks the point where the borders of three countries meet.
The only thing that distinguishes this particular grenserøysen by treriksgrense from an ordinary border point is that three countries national borders meet at this point and that this grenserøysen therefore belongs to three countries instead of two, and therefore will carry three countries symbols. Hence the term Three-Country Cairn. In Scandinavia there are two Treriksrøysa and both located along the country’s frontier, respectively border point between Norway, Sweden and Finland (southeast of Skibotn in Troms) and between Norway, Finland and Russia (west of Grensefoss in Pasvikdalen Finnmark). By Treriksrøysa Norway / Finland / Russia (69 ° 03’06,9 «N 28 ° 55’45,5» E), it is forbidden to move around heap when crossing both the Russian border and the Schengen area external borders only allowed at a border. There are Norwegian and Russian guards who monitor the border. It is also forbidden to photograph Russian personnel or military equipment, or with telephoto lenses with focal lengths of more than 200 mm across the border. On the Norwegian side are trekkers usually followed the heap of limit hunters, to prevent illegal crossing of the Russian border. Source: Wikipedia. Google trans.