Deep in the karst landscape near Prosecco lies Abisso Martel. Its entrance is unassuming. It’s near the road leading to Rupinpiccolo just 180 meters right from the railway station.
Abisso Martel is more than just a cave. It’s a significant part of Trieste’s subterranean world. Its discovery was accidental. A landowner unearthed it while removing a tree. The Club Touristi Triestini a local group exploring nearby caves quickly investigated.
Initial explorations revealed a significant depth. The cave plunges 150 meters into the earth. Its total development extends 180 meters. The bottom sits at 108 meters above sea level. Later expeditions uncovered further branches and shafts. But they didn’t find significantly deeper passages.
The Abisso Martel intrigued researchers. They noticed air currents. There was sand. There were plant remains. Most importantly they found a troglobitic beetle. This Pterostichus fasciatus punctatus Kreutz was only previously found in Grotta di Trebiciano. This fuelled intense digging. This was an attempt to link the cave to underground water sources. Yet this effort hasn’t yielded the expected results.
Abisso Martel remains a mystery. A hidden world beneath the surface of Trieste. Its secrets are yet to be fully revealed. The cave’s depth and unique features. The presence of the rare beetle continue to fascinate. Abisso Martel is a testament to the hidden wonders. The hidden wonders of the karst region. It is a reminder of the ongoing exploration of Trieste’s subterranean realm.