The Battaglietta Sinkhole is a small cave located at the northern footwall of Monte Spina Puci (1596 m a.s.l.), in the south-eastern side of the Battaglietta depression. The cave, about 80 - 100 m long and 30 m deep, is characterised by narrow and low galleries, rarely exceeding one metre in height and width, with landforms related to the underground water flow. Speleothems are absent. The sinkhole is also the point where the surface water flow disappears underground. These waters come from the drainage of the Battaglietta depression. The visit of the cave is recommended to expert speleologists.