Arthur and Edward Colliery at Upper Lydbrook , also known as Waterloo.

First opened around 1841, taken over in 1908 by Lydney and Crump Meadow. It was a "deep" mine and closed at the end of 1959.

http://www.old-maps.co.uk/
co ords 360797,215161

Near-by was the Waterloo Corn Mill.

Today the name lives on at the Waterloo Business Park GL17 9LR
www.multimap.com/map/browse.cgi?-
lat=51.8327&lon=-2.5688&scale=10000&icon=x