In the Oppdal area, a sequence of Caledonian thrust nappes was metamorphosed, recumbently folded, and refolded during the Caledonian orogeny. The well known Oppdal augen gneisses are Proterozoic rocks belonging to a single nappe unit in the tectonostratigraphy. Another distinctive nappe unit was formed from feldspathic sandstone, intruded in late Proterozoic time by pre-tectonic dolerite dikes. Despite the new thrust interpretations, the early concept of ductile infrastructurel deformation below a more rigid superstructure may still be accurate here in one of Wegmann's type localities of theStockwerktectonic model.