River Tay River Tay The River Tay () is the longest river in Scotland and the seventh-longest in the United Kingdom. The Tay originates in western Scotland on the slopes of Ben Lui (), then flows easterly across the Highlands, through Loch Dochart, Loch Iubhair and Loch Tay, then continues east through Strathtay (see Strath), in the centre of Scotland, then southeasterly through Perth, where it becomes tidal, to its mouth at the Firth of Tay, south of Dundee. It is the largest river in the UK by measured discharge. Its catchment is approximately , the Tweed's is and the Spey's is
Loch Tay Loch Tatha"). The Scottish Crannog Centre, which contains a reconstructed crannog, is located on the south shore of the loch. Loch Tay railway station was on the Killin Railway. It is now closed. In ancient times (in the Iron Age) people lived on defensible, man-made islands on the loch, called crannogs. More than 20 submerged crannogs have been identified in the loch. An example has now been reconstructed on the south side of the loch at the "Scottish Crannog Centre". Loch Tay Loch Tay (Scottish Gaelic, "Loch Tatha") is a freshwater loch in the central highlands of Scotland, in the