One specimen, a reindeer bone with tool markings, has been radiocarbon dated to approximately 52,000 years ago.

[9] In the 1920s, the cave explorer Hermann Mayer worked with his father to develop the Peggauer section of the Lurgrotte for visitors.

[11] On February 24, 1927, the city of Frohnleiten hosted an auction for the grotto, including a restaurant, two mansions, and 35,359 m2 (380,600 sq ft) of ground, in the interests of preserving the Lurgrotte as a domestic enterprise.

[14]  On July 8, 1927, the District Court of Frohnleiten held another auction of the Lurgrotte, which was eventually won by a wine-trader named Pezzi.

In the following years the Lurgrotte was developed into a show cave, with infrastructure such as bridges, walkways, and lights added for visitors.

[16] The Lurgrotte is a complex, three-level cave which forms a drainage system for the entire Tanneben karst area.

[2][19] Attempts to trace the outflow using dye have shown that the water from the Lur emerges in springs south of the cave, while the flow of the Schmelz appears to originate from sources north of the Lurgrotte.