The high dikes on both sides ensure that the village is effectively safe from flooding. This protection has since been reinforced with the addition of a mobile barrier. In the beginning, the reservoir's volume was roughly 900 000 m³, but this has since been markedly reduced over the last few decades by sedimentation. The power station's generating capacity has a maximum of 1 900 kW, generating a yearly average of 5 232 240 kWh. The reservoir's area is roughly 30 ha. This enormous intrusion into the natural environment in the Nahe's water gap, however, has brought about its own microclimate of almost Mediterranean character, which is especially conducive to winegrowing. The Lemberg, with an elevation of 420 m above sea level, is the highest peak in the Nahe valley region. It harbours among other mining points of interest a cultural-historical gem: a mediaeval cinnabar mine, the Schmittenstollen, the only mercury mine in Western Europe that has been developed into a visitable mine. The former worship site on the Lemberg that was consecrated to the god Mercury suggests that quicksilver was being mined here even in Roman times. Evidence, though, only exists for mining as far back as the 15th century, with three great periods of working, the last from 1936 to 1942, during which cinnabar was mined. In the gallery that is open to the public, the visitor can make out the sections that were worked in the Late Middle Ages by hammer and pick as well as those that were worked in the 20th century by machine and with explosives. This underground experience gives the visitor a taste of what it was like for generations of miners who worked the cinnabar mine over the centuries. The Schmittenstollen is open from April to October. The "Weinwanderweg" (“Wine Hiking Trail”) with a total length of about 4.6 km has gathered up more than 340 members worldwide, making it the village's biggest club. Many members busy themselves expanding and maintaining this educational path that leads through Niederhausen's various vineyards. Unfortunately, what they must often deal with is the damage wrought by vandals. The membership, though, does its best to put everything back in order. Running through Niederhausen is "Landesstraße" 235, and it is met in the village centre by "Kreisstraße" 56.