This part of the interior is the longest stretch between the South and the North and is passable by 4wd vehicles during summer. It is mostly very desolate and barren. Only where there is water, sparse vegetation can be found. In earlier times, the few who dared use this route rode as fast as possible through and sometimes exhausted their horses. The word for to exhaust in Icelandic is "sprengja", hence the name of the area.
A few blue glacier melt water lakes in all the sand.