Thanks guys
That photo was taken on a walk starting from the carpark at Mardale Head, up Gatesgarth Pass and on to Branstree. Northeast to the 673 point (apparently called High Howes but unnamed by OS) and Selside, then east to Swine Gill. There is a path not shown on the map that runs alongside Mosedale Beck past Forces Falls and down into Swindale. Join the bridleway as far as Swindale Head then take the Old Corpse Road back to Mardale; the ruin in the photo is just above the 'Loups'.