Photograph of Loch Katrine in the Trossachs, Scotland. In the right of the foreground is seated a man under a tree with his back to the viewer. Beyond a low stone wall that borders the loch is a thatched roved boat house with a boat outside in the centre of the background. A larger boat can be seen on the right.    

Robert Roy McGregor (1671-1734), the famous Jacobite sympathiser, was born at the head of Lake Katrine. The loch provided the setting for Sir Walter Scott's poem The Lady of the Lake. Water from the loch is treated at the Milngavie Water Treatment Works which provides a source of clean water for the inhabitants of Glasgow. The works were officially opened by Queen Victoria in October 1859.