Paintings and drawings created by artists to give an impression of how hydro-electric schemes would look in Scottish landscapes have gone on show in Inverness.
The illustrations were created in the 1940s and 1950s during the planning of dams and power stations at locations including Pitlochry in Perthshire and Foyers on Loch Ness.
They form part of SSE Heritage’s Power from the Glens exhibition at Eden Court.
Dr Alistair Fair, a reader in architectural history at the University of Edinburgh, said: “These drawings, in a way, are a lost art now.”
