In Lón county, the most eastern area of the Vatnajokull Region, lie the Stafafellsfjöll mountains, also called Lónsöræfi. They dominate the skyline east of Vatnajökull glacier and have long comprised one of Iceland's most extensive protected areas. Besides the deep, rugged canyons, the landscape displays a wide range of colors owing to the presence of rhyolite and other colorful rocks. In contrast, there are also lushly vegetated and sheltered valleys offering a very good chance of spotting reindeer. The numerous hiking trails make this area perfect for hiking.