Norwegian-Swedish border marker no 259 [named (in Norwegian) Ivarsteinen or (in Swedish) Ivarstenen – lit. Ivar's Stone] is maybe the biggest boundary marker in the world, located between North Norway and North Sweden, about 50 km south-southwest of Bjørnfjell and 27 km southeast of Sørdalen.  The border marker is a natural rock, about 8 metres high and several hundred tons.  Position: 67° 58' 10" N  17° 53' 59" E.
Photo: © Ketil Stavdal.

Royal Norwegian and Swedish monograms of 1763. Photo: © Ketil Stavdal.

At NOSE boundary marker 259 the boundary turns about 250°. 
Map: Lantmäteriet, BD6 Abisko - Kebnekaise - Narvik, Gävle, 2003, ISBN 91-588-9408-X.