De Rosslag is an access point located at Roermond City Marina, situated in the small town of Herten, just a few kilometers from the city center of Roermond in the Dutch province of Limburg.

The marina sits along the road known as De Rosslag, with its address at Rosslag 1B.

The surrounding area offers convenient access to Roermond's shopping destinations, including the Designer Outlet and Retail Park, as well as the local shops in the village center of Herten, all reachable on foot or by bicycle.

The marina itself is described as well-equipped and serves as a practical base for exploring this part of Limburg by water or by land.