Antica cava di pietra usata nel 187 AC dai legionari romani per lastricare la <a href="//commons.wikimedia.org/wiki/Via_Flaminia_Minor" title="Via Flaminia Minor">Via Flaminia Minor</a>,
<p>nei pressi di <a href="//commons.wikimedia.org/w/index.php?title=Pian_di_Balestra&amp;action=edit&amp;redlink=1" class="new" title="Pian di Balestra (page does not exist)">Pian di Balestra</a>, appennino Bolognese, a pochi metri dalla via medesima.
</p>
Autore Sandro Baldi, fotocamera Nikon D50 con ottica standard, scatto eseguito il 27/11/2006.
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Samba~commonswiki" class="mw-redirect" title="User:Samba~commonswiki">Samba~commonswiki</a> assumed (based on copyright claims).
27 November 2006 (according to <a href="https://en.wikipedia.org/wiki/Exchangeable_image_file_format" class="extiw" title="en:Exchangeable image file format">Exif</a> data)
No machine-readable source provided. Own work assumed (based on copyright claims).