Langlidalen ("the long hillside valley") is a valley in Nathorst Land at Spitsbergen, Svalbard. It has a length of about three kilometers, and is located between the mountains of RÃÂ¥nekampen at the western side, and Langlifjellet and Sven Nilssonfjellet at the western side. The glacier of Langlibreen extends from Steindolptoppen into the upper part of Langlidalen.