View this artwork by appointment, at Tate Britain's Prints and Drawings Rooms
Drawn with the page turned horizontally, this is the view towards Snowdon from near Nantlle, about three miles east of the Harlech-Caernarfon road at Penegroes. The composition is one that Richard Wilson (1713–1782) had made famous in a celebrated picture, Snowdon from Llyn Nantlle, of which two versions exist, in the Walker Art Gallery, Liverpool, and the Nottingham Castle Museum (1765–7).
Here, Snowdon itself is mostly obscured by cloud. The two spurs that flank the vista are, on the left, Mynnydd Mawr, and on the right Y Garn.