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
Tay Valley, Ontario Tay Valley, Ontario Tay Valley is a township in eastern Ontario, Canada, on the Tay River in the southwest corner of Lanark County, adjacent to the United Counties of Leeds and Grenville and Frontenac County. The township administrative offices are located in Glen Tay. The township was incorporated on January 1, 1998 by amalgamating the former townships of Bathurst, South Sherbrooke and North Burgess. It was originally known as the township of Bathurst Burgess Sherbrooke, but adopted the name of Tay Valley on July 30, 2002. The Canadian Pacific Railway's original mainline (CP Havelock Subdivision) passed through Glen Tay heading