Counting tree rings

Here is the pipe connecting Loch Mhor to Loch Ness for the Foyers Hydro-Electric scheme built in the early '70s. It really is massive - I am standing on the arch to give some scale. 

In the forestry, we passed through some cleared plantation and counted the tree rings - 50 years for the largest trunks. This land is being used. 

Earlier, we had eaten in the fine old inn at Whitebridge, named after the nearby single span stone arch bridge built by General Wade in 1732. His roads are everywhere hereabouts.