Hilltop Trenches and small Tunnel Mount Cameron area [????- ]

Stumbled across this completely overgrown hilltop position while following the ribbon trail traversing the N ridge of Mount Cameron.

There's a very small dug out tunnel with 2 entrances and a trench leading to a fortified position some meters away. Was late in the day so didn't explore much more. One for the Military buff's to check out. It's very easy to reach following the ribbon trail from the power mast going uphill.