The Slate Bridge Posted by Toby Van de Velde on August 5, 2017. This image is a slate Bridge crossing an unknown river in Cwm Penmachno, Snowdonia, north Wales. No infrared or film here, taken on my Nikon D810 On a drizzly morning last April, all I did was convert it to black and white. Sometimes less is more. Facebook Twitter Pinterest Reddit LinkedIn WhatsApp