From the Wikipedia page on the Counties of Norway [1], which gives a list.

From the consolidation to a single kingdom, Norway was divided into a number of geographic regions that had its own legislative assembly or Thing, such as Gulating (Western Norway) and Frostating (Trøndelag). The second-order subdivision of these regions was into fylker, such as Egdafylke and Hordafylke. In 1914, the historical term fylke was brought into use again to replace the term amt introduced during the union with Denmark. Current day counties (fylker) often, but not necessarily, correspond to the historical areas.