Netphen (German pronunciation: [ˈnɛtfən]) is a town in the Siegen-Wittgenstein district, in North Rhine-Westphalia, Germany. It lies on the river Sieg, roughly 7 km northeast of Siegen.
Netphen lies on the Rothaargebirge’s southern slope and forms the natural boundary of the Wittgensteiner Land. The municipal area is made up of many dales and mountain ridges. Northeast of the constituent community of Walpersdorf lies the source of the river Sieg and in the Lahnhof – another constituent community whose name takes the definite article – lies the source of the river Lahn.
(in each case at 31 December)
The constituent community of Beienbach lies at the end of a small side dale of the Sieg between Netphen and Deuz and is fringed by spruce and broadleaf forest on the heights and by agricultural areas as well as old „fruit meadows“ (where various fruit trees grow) right at the edge of the community. It is also crossed by the Katzenbach. It had its first documentary mention in 1299….