Norður-Múlasýsla
The Norður-Múlasýsla is a district in northeast Iceland .
The Norður-Múlasýsla extends with 10,568 km² between Vatnajökull and the North Atlantic. The municipalities of Vopnafjörður , Fljótsdalshérað , Fljótsdalur and partly Langanesbyggð belong to the second largest district after the neighboring district Suður-Þingeyjarsýsla . Egilsstaðir , Fellabær and Vopnafjörður are the largest towns.