Stiff fighting took place beneath Soglio di Campiglia and Pria Fora, and the Italians withdrew to the mountain line which had been hastily prepared from Forni Alti by Monte Spin to Pria Fora.
The other indication is the name Alti Mermer (the six columns) given to a quarter in the same neighbourhood.
The Constantinian line of fortifications, therefore, ran a little to the east of the quarter of Alti Mermer.
Remember to do the three checks; Airspace, Alti and DZ, before starting any exercises and to respect all other canopy flyers.