Lettensturz, Disused sandstone quarry in Feuchter Forst, Bavaria, Germany

Lettensturz is an abandoned sandstone quarry about 1.5 km northeast of Feucht, on the Feuchter Höhe–Steinige Au ridge in the Feuchter Forst at just under 400 m above sea level. Its walls yielded Burgsandstein, a quartz-bound stone darkened to deep red by iron(III) oxide and sometimes to near-black by humic inclusions. Traces of quarrying remain clearly visible, and two footpaths cross the site, with railings on the steep sections.

Sandstone was quarried here for the construction and fortification of the market town of Feucht, possibly from the 8th or 9th century, with documented extraction from the 12th century and large quantities in the early 14th century. The dark red Burgsandstein was used locally and in nearby villages; the quarry was abandoned in the 1880s after sawn stones were imported via the Wendelstein–Feucht railway. In World War II a concealed anti-aircraft position of Flak-Regiment 93 stood in the disused pits.

The quarry is a 15-minute walk from Feucht and lies on two marked hiking trails, with railings securing the steep sections. The site is freely accessible all year and is not a protected monument. Red deer and wild boar live here, and animals repeatedly stray onto the busy A 6 and A 9 motorways bordering the area to the north and west.

In the Second World War, the abandoned quarry hid a well-camouflaged anti-aircraft position under Flak-Regiment 93, guarding Nuremberg; its night searchlights stood near today's open-air pool in Feucht. Shortly before the war ended, on 16 April 1945, all fortifications of the Platte bunker complex were blown up during the Battle of Nuremberg.