The Kvitvola Nappe in southeastern Norway and adjacent districts of Sweden consists of the Upper Proterozoic sedimentary Engerdalen Group and crystalline basement rocks. The Hylleråsen Formation occurs at the base of the nappe and is a carbonate unit. Diagenetically formed dolomite, magnesite, chert and dolomite pseudomorphs after gypsum indicate a warm palaeoclimate. The Koppang Formation (diamictite) lies with erosional unconformity on the Hylleråsen Formation and is interpreted to be a tillite from the Varanger Ice Age. It is succeeded conformably by the Høyberget Sandstone which includes the Lekjenna Member (calcareous sandstone) and represents fluvial and shallow-marine facies. The Engeren quartzite may be a tectonic remnant of a unit beneath the Hylleråsen Formation. The Engerdalen Group is compared with other Upper Proterozoic sequences in the Scandinavian Caledonides, and the location of the palaeoenvironment is discussed.