Kerber Quarry Lake (Steinbruchsee Büchlberg)

The former Büchlberg granite quarry with lake is an important geosite.Fine- to medium-grained two-mica granite (equivalent to Hauzenberger Granite I) was mined from 1880 until after Carl Kerber's death in 1961 in the former Kerberbruch quarry on the Büchlberg. The rock, which is grayish-white when fresh, has a slightly yellowish tinge. The outcrop walls show signs of weathering to varying depths. Büchlberg granite was used as natural stone in buildings such as Nuremberg Central Station, the spiral staircase of the Germanisches Museum in Nuremberg, and the Walhalla in Regensburg. The stone was also traded internationally, for example in Belgium, France, the Netherlands, and the USA. The granite quarry, surrounded on all sides by the remaining walls and with a lake at its lowest level, is a natural monument and is located in a landscape conservation area. It now serves as a recreational area. Bavarian State Office for the Environment (LfU).umweltatlas.bayern.de/standortauskunft/rest/reporting/sb_geotope/generate?additionallayerfieldvalue=275A032

There is a rich stock of fish in the lake. The picture shows a so-called spawning scale carp (also called fishbuck)

The former quarry is also vividly described atsehenswerter-bayerischer-wald.de/steinbruch-buechlberg-wandern-see.html