One of the largest sheep farming developments ever in the world is thanks to the emigration of farmers from Scotland’s bleak north coast to Argentina, a new book reveals. The little-known story of intrepid pioneers from Caithness who travelled across the globe is now being told. ‘Caithness to Patagonia’ tells of a largely uncharted aspect of the Scottish diaspora, featuring tales of adventure, hardship and some significant success stories. The regions of Caithness and Patagonia are literally a world…