Scattered in and around Clausthal-Zellerfeld are numerous dams and streams belonging to the Upper Harz Water Regale.

It was quickly accepted because it proved superior to ropes made of hemp or to metal chains, such as had been used before and soon found its way into diverse applications, including most notably, suspension bridges.

The former railway station, which was rebuilt from 1961–1963 after being destroyed in 1944, houses the tourist information and the municipal library today.

2006 local elections: The retail trade is mostly located in the main center around Adolph-Roemer-Straße in the Clausthal district.

Overall, the retail trade in the former mountain town is not very well developed and is now suffering from the general decline in shops.

The development of the TU Clausthal and the cooperation between local companies and science is a decisive advantage for the business location.

Tourism is another important branch of the economy in Clausthal-Zellerfeld, but above all in its districts Altenau, Buntenbock, Schulenberg and Wildemann.

Today the public transport is served by several bus lines that travel to Goslar, Osterode am Harz, Altenau and Sankt Andreasberg.