Mt.Sveinstindur is positioned near the south shore of the highland lake Langisjór, practically in the middle of Iceland. The height of the mountain is 1093 meters, and it is higher than most of the surrounding mountains. The elevation is about 350 meters from Langisjór as the lake is placed at an altitude of 670 meters. Sveinstindur mountain is one of the best places in Iceland to get a good view of the Highland and probably one of the best viewing places in Iceland. Here you have a view to six glaciers, many great volcanoes, hundreds of mountains, long and winding rivers, and the horizon for hundreds of kilometers in any direction. You just have to be there to understand the magnitude of the view.

Langisjór is a lake in the Highlands of Iceland. It is around 20 km in length and up to 2 km wide, with a total surface area of about 26 km2 and a depth of 75m at its deepest point.

The lake is situated rather far from civilization at the south-western border of Vatnajökull at an altitude of 670 m above sea level. Environmental campaigners have expressed concern at government plans to site an industrial dam on the lake.