In SE Austria Gudenus cave is an archaeological site near city of Krems

It is known for its animal fossils and remains of paleolithic and neolithic cave men/women.
Human artifacts include flint tools, engraved reindeer bone, even a fragment of bone flute dated to 10-30,000 years before present.

The cave is 22m (72 feet) long; its width is 2-3 m; and it is situated 7.5m (or 25 ft) above the level of stream.
The site is close to river Danube.

Animal archaeologically speaking. Deposits have yielded Woolly mammoth, Woolly rhinoceros, Aurochs, Chamois, Reindeer, and Red deer.

That’s one heck of a shelter!