A piedmonttreppen or piedmont benchland[1] is a conceived landform consisting in a succession of benches at different heights and that forms in sequence during the uplift of a geological dome.
[2] Penck's type area for the piedmontreppen was the Black Forest of Germany.
[1][3] Outside Germany the South Swedish Dome has been identified as containing a piedmonttreppen, with the uppermost and oldest surface being the Sub-Cambrian peneplain.
[4] There have been attempts at describing the southern portion of the Scandinavian Mountains as having a piedmonttreppen topography made up of paleic surfaces in the uplands and a strandflat at sea level.
[5] Later authors also stress that the Scandinavian Mountains cannot be described as a series of domes.