Not hidden as such, but it is on a quiet back road that not many have reason to drive along.
This is the Shepherd's Lane cairn on Gilbertfield Road, on the eastern outskirts of Cambuslang. It commemorates the folk who left the nearby
Dechmont Barracks to walk along this shortcut to Newton Station on their way to far-flung postings in both World Wars, many of whom never returned.
I thought I had a pic of the plaque itself from an earlier wander, but can't find it. It reads:
"This cairn is to commemorate all the soldiers who walked this path to Newton Station to go to the 1st and 2nd World Wars. And all those who didn't return. We will remember them. Donated by Pride of Place."
The cairn was built in 2006, but was vandalised within weeks. One of the plaques is still missing, can't remember what it said, probably the name Sheperd's Lane, as there's no reference to it elsewhere. Thankfully, the local morons have left it alone pretty much since then.
Anyone who does geocaching might recognise it too!