Hohlenstein-Stadel is a cave located at N 48° 32' 57.57" and E 10° 10' 20.75" in the Hohlenstein cliff (not to be confused with the Hohle Fels) at the southern rim of the Lonetal (Lone valley) in the Swabian Alps in Germany. While first excavations were started after the second half of the 19th century, the significance of some of the findings were not realized until 1969. The most significant finding was a small ivory statue called the Lion-man, which is one of the oldest known sculptures in the world.