The cave was situated in a limestone gorge with the interior dimensions of 3 m (9.8 ft) in width by 5 m (16 ft) in length by 3 m (9.8 ft) in height, and a 1 m (3.3 ft) opening 20 m (66 ft) above the valley floor in the south wall which was 50 m (160 ft) high. The cave got its name from the nearby large farm of the Feldhof.[1][2][3]
The cave was destroyed during the 19th century as a result of industrial-scale limestonequarrying which widened the gorge. The location of the cave was soon forgotten and by 1900, unknown.
In 1997 a successful search for the site of the cave and its deposits yielded 24 fragments of human bone, one of which, identified as NN 13, fit exactly onto the left lateral femoralcondyle of the Neanderthal 1 fossil. The 2000 excavation resulted in the recovery of thousands of artifacts. The mitochondrial DNA of two bone samples were fully sequenced, and completed in 2009.
In recent years a 25 meter tower has been built to take visitors from the floor of the quarried-out valley to the height of the original cave, and a reconstruction of the Neanderthal bones placed at the top.
References
^Schmitz, R W.; Thissen, J. Neandertal: Die Geschichte geht weiter. Heidelberg: Spektrum; 2000.
^Fuhlrott, J. C. (1868) Verh. naturhist. Ver. preuss. Rheinl. 25, Corr. Bl., 62–70.