Altlengbacher Schichten#
Altlengbach Strata, most important stone formation in the Flysch zone in the Vienna Woods, mainly of sandstone, which in earlier times was exploited in numerous quarries as construction stone, formed in the late Cretaceous and early Tertiary periods approximately 60-70 million years ago.
Further reading#
B. Ploechinger and S. Prey, Der Wienerwald, 21993.