The disused circular stone building quite near the start of the path we guessed might have once been a doocot. In fact it was a lint (or linen) mill which was built in the late 18th century by Ewan Cameron of Lawers to mechanize the production of linen from locally grown flax. You don't think of Glen Lyon as being a hotbed of the industrial revolution, but the proof was here before our very eyes (except that we thought it was a doocot).

The old lint mill at Invervar