During the First World War, Castelnuovo was about a kilometer from the front line and was almost completely destroyed by the bombings of the Italians and the Austro-Hungarians.
Even today (2024) you can see some machine gun positions and various positions dug into the rock on Mount Civerona.

Near the mouth of the Maso stream there were two trenches in concrete. They were destroyed in 2023 or 2024 to make room for a small bridge that supports a rubber hose perhaps for irrigation.
Here's what they looked like.

Here's a machine gun position in the final part of the front line, along the Maso stream.

The view of the inside of the bunker, with the slit for the machine gun almost completely covered by earth.

After crossing the Brenta river, on the road to S. Margherita, at the second bend, on the right, there is a small hill called "el castelar".
On the top, the story (or legend) says, there was a "castle" that was destroyed like many other castles in the valley by a Vicenza expedition in the 14th century.
In reality, given the small size of the hill, there was probably a small house as a guard post.
. At the top of the hill a large cave was dug with 4 or 5 exits.
There were machine guns protecting the first line.
I went to see it (March 2025) and found only one of the cave's exits on which there was probably a machine gun. The other exits had collapsed.
Here is what I found.

The position from inside.

The top of the "castelar".

Traces of a trench.

Traces of a wall (supporting?) of some previous construction (the castle?)

To the left and above the church of S. Margherita there is a large boulder called "Sasso dell'Orco". Here too a tunnel was dug, in the direction of the Maso torrent.

Panorama in the immediate vicinity of the Sasso dell'Orco.

The summit of the "Sasso dell'Orco", now covered by trees.

Ingresso della galleria.

Unfortunately, today we don't see much, given the vegetation that has grown in the meantime.

Immediately below the Sasso dell'Orco is the "Silvanello". Here too it is a rock dug out and used as a post.

Still on the left but at a lower altitude, after the farms there are four large boulders dug inside with a view, among other things, on the first line.
Here is what remains.

Detail of the entrance, there was probably a door.

Along the road to reach the Civerone meadows, there are two other cave stations.
The first is on a rock called "Scrozo nigro"
The second is located about ten meters below the road to Civerone, at the height of Scrozo nigro, on the edge of a cliff.

The first station is made up of two tunnels that open a few meters from each other on the rocky wall of Scrozo nigro
They give a complete view of the area.
Currently the entrance is a bit blocked by rocks and dirt that have fallen over the years.

View towards NE, with Mount Lefre (Italian artillery positions) and the first line along the Maso stream.

The mouth of the second tunnel.

The entrance seen from the inside.

The second position.
I will photograph it as soon as possible

Continuing along the road, and making a detour, you can pass near the "Boccardin", an area of Civerone that was partially protected from the view of the Italians by the shape of the mountain.
Here there was a set of huts for the men who were engaged in the defense of the mountain.
The road, finally, reaches the Civerone meadows.
In the huts that existed here, the commanders of the regiments engaged in the defense of the mountain were present.

photo later

Going up the road from Spagolle (a hamlet of Castelnuovo) towards the Civerone meadows, you will find the half-destroyed water tank for the Austro-Hungarian troops who occupied Civerone.

On the Civerone meadows there was a small war cemetery that was then dismantled in 1920 and the remains of the soldiers were taken to the Rovereto ossuary.
It was redone in the early 2000s to remember those who took part in the fighting that took place on this mountain. Now, in place of the graves, there are crosses with the names of the regiments that took part in the fighting that took place in these places.

The names of the fallen who were buried here.

The cemetery as it was.

Shortly after the cemetery (on the right, coming from Castelnuovo) there is a path that in a few minutes leads to the powder magazine, the ammunition depot of the area..

L'imbocco visto dall'inreno.

On the website of the municipality of Castelnuovo there is a section dedicated to the "Circuito storico tematico - Monte Civerone 1915-1917", at the address:
https://www.comune.castelnuovo.tn.it/Novita/Notizie/Circuito-storico-tematico-Monte-Civeracende avvenuti lì e nei dintorni.

Finally going towards Ortigara, there is another cemetery of Austro-Hungarian soldiers, which has been forgotten by the people who were responsible for recovering the bodies from the various burial places.
The crosses planted here correspond to as many burials, probably even multiple, of Austro-Hungarian soldiers who fell in the area.
In about 2000 it was restored by the association "zima Casternovo".