Rare map of the proposed line of a canal joining the Firth of Forth with the River Clyde, surveyed by Robert Whitworth, a leading canal engineer, and John Laurie, a Scottish land-surveyor, their survey work edited for publication and engraved by John Ainslie, the leading Scottish engraver and publisher of the period. The canal was opened in 1790, extending from Grangemouth on the Firth of Forth to Bowling on the Clyde River.

COPAC records only a single institutional location of this map, the example in the National Library of Scotland, although two examples can be found in the Scottish National Archives.