SD1385 : Trig Pillar on Black CombeA vivid account of Mudge and Colby's establishment of an Ordnance Survey triangulation point here in 1808 can be found in Rachel Hewitt's 'Map of a Nation: a biography of the Ordnance Survey (2010)'. The poet William Wordsworth, who knew the surveyors and had taken a lively interest in their Lake District cartographic work, was in 1811 to pen two poems inspired by the Black Combe project, viz 'Inscription:Written with a Slate Pencil on a Stone, on the Side of the Mountain of Black Combe' and 'View from the Top of Black Combe'.