Huge fountain and refuge that seems to be closed. I think you should ask the municipality of Villavallelonga if you want to use it. Benches, tables and a fire place …
The Capanna Sociale il Casotto is located in Prato di Campoli and is a reception point of the Sentiero Italia. To get the keys, you need to contact the CAI of Frosinone.
The Faito refuge is located at the foot of the wood, under Monte Vado Cavallo and overlooks the Liri valley. It is usually closed, but outside there is a lean-to with a fireplace.