Map No. 72, Upper Clyde Valley, in the waterproof & tear-resistant OS Active version of the Ordnance Survey Landranger series at 1:50, 000, including Lanark, Biggar, Stane, Newmains, Overtown, Forth, Braehead, Carlops, West Linton, Dolphinton, Carnwath, Carstairs, Carluke, Crossford, Lesmahagow, Libberton, Elsrickle, Thankerton, Rigside, Stobo, Broughton, Drumelzier, Symington, Coalburn, Douglas, Roberton, Crawfordjohn, Abington, Crawford & Tweedsmuir, with the Pentland Hills, Clydesdale, the peak of Broad Low, plus six reservoirs: Cobbinshaw, Crosswood, West Water, Camps, Talla & Megget. Edition D1; Publication date April 2012 About Ordnance Survey