Not in the Lake District as such but this walk around Talkin and Greenwell illustrated some of the bedrock nicely. Walk taken from Crow, Walking in Cumbria's Eden Valley.
The picture is taken from Greenwell, NY 541561.
Just beyond Gelt Viaduct, showing the layers of bedrock and pebble debris from high river flows.
Ny 532573.
Ny 532573.
Gelt wood quarry, NY 526587. Sadly the path to the inscribed Roman stone nearby is now impassible.
Specimen of sandstone from the path at the same site.