Known forever by the local people as 'the sparry calcite pit'. In 1961 it was visited by members of the GES – CMB who included it in a work of the area (Montoriol, 1964) calling it Avenc molt petit de Can Sadurní. They did not give a clear location at all; its location appeared only on a precarious map of the area that accompanied the aforementioned article. With the passage of years and the little interest it had, practically nobody tried to locate it and nothing more was ever known of it.