One of the scenes when Mac and Oldsen travel to Ferness near the beginning of Local Hero was filmed on the A861 between Glenuig and Kinlochmoidart. The loch in the distance is Loch Moidart close to Castle Tioram.
The is just enough space to park a car on the roadside. There is no other parking closeby. As can be seen a lot of trees have grown in the 30 years since the movie was filmed mostly obscuring the view over to Loch Moidart and also making it impossible to get the same viewpoint as used in the movie.