Graham Eaton / Perched boulder of Carboniferous age Millstone Grit on the western edge of the Kinder Scout plateau. Derbyshire, UK, September

Graham Eaton / Bowl carved in Carboniferous, Millstone Grit on Stannage Edge, Hathersage, Derbyshire, March. The bowls were carved by a local gamekeeper in the early 1900's as drinking bowls for grouse and dogs.

Graham Eaton / A bowl carved in Carboniferous, Millstone Grit on Stannage Edge, Hathersage, Derbyshire, March. The bowls were carved by a local gamekeeper in the early 1900's as drinking bowls for grouse and dog...

Graham Eaton / The southern approach to Pen-y-ghent, one of theYorkshire '3 Peaks'. The summit comprises Carboniferous age Millstone Grit, overlying Carboniferous Limestone that forms the outcrop in the imag...

Graham Eaton / Tree and rock formations at Brimham Rocks, Harrogate, Yorkshire. Comprised of Carboniferous age, Millstone Grit, these strange rock formations form by variable erosion of soft and hard layers in the r...

Graham Eaton / Druids Writing Desk, rock pedestal created by variable erosion of soft and hard layers of carboniferous age millstone grit, Brimham Rocks, Harrogate, Yorkshire, England, UK, October 2016.

Graham Eaton / Rock pedestal created by variable erosion of soft and hard layers of carboniferous age millstone grit, Brimham Rocks, Harrogate, Yorkshire, England, UK, October 2016.

Graham Eaton / Rock formations at Brimham Rocks created by variable erosion of soft and hard layers of carboniferous age millstone grit, Harrogate, Yorkshire, England, UK, October 2016.

Graham Eaton / Rock pedestal at Brimham Rocks created by variable erosion of soft and hard layers of carboniferous age millstone grit, Harrogate, Yorkshire, England, UK, October 2016.

Graham Eaton / Millstones made from millstone grit beneath Stannage Edge, Hathersage, Derbyshire, November 2016.

Graham Eaton / Millstones made from millstone grit beneath Stannage Edge, Hathersage, Derbyshire, November 2016.

Graham Eaton / Rock formations in carboniferous / millstone grit, Kinder Scout, Edale, Derbyshire UK November

Graham Eaton / Rock formations in carboniferous / millstone grit, Kinder Scout, Edale, Derbyshire UK November

Alex Hyde / A millstone grit formation known as the 'Coach and Horses' on Derwent Edge, with Heather (Calluna vulgaris) in bloom. Peak District National Park, Derbyshire, UK. September. Stitched panorama

Alex Hyde / A millstone grit formation known as the 'Coach and Horses' on Derwent Edge, with Heather (Calluna vulgaris) in bloom. Peak District National Park, Derbyshire, UK. September.

Alex Hyde / A millstone grit formation known as the 'Salt Cellar' on Derwent Edge, with Common Heather (Calluna vulgaris) in bloom, Peak District National Park, Derbyshire, UK. September.

Alex Hyde / A millstone grit formation known as the 'Salt Cellar' on Derwent Edge, with Common Heather (Calluna vulgaris) in bloom, Peak District National Park, Derbyshire, UK. September.

Alex Hyde / A millstone grit formation known as the 'Salt Cellar' on Derwent Edge, with Common Heather (Calluna vulgaris) in bloom, Peak District National Park, Derbyshire, UK. September.

Graham Eaton / Eroded Rock pedestal comprising of Carboniferous age, Millstone grit, Kinder Scout, Peak District National Park, Derbyshire, UK. April, 2019.

Graham Eaton / Millstones abandoned near old quarry where they were made. Stannage Edge, near Hathersage, Peak District National Park, England, UK. November 2015.

Graham Eaton / The Boxing Glove, an exposure of eroded and sculpted millstone grit sandstone from the carboniferous period. North Face of Kinder Scout, near Glossop, Peak District National Park, England, UK. June 20...

Graham Eaton / Sheep on Hern Stones, an outcrop of carboniferous age millstone grit. Bleaklow, near Glossop, Peak District National Park, England, UK. June 2020.

Graham Eaton / Wain Stones known as The Kiss, millstone grit boulders from the Carboniferous, eroded and sculpted. Bleaklow, near Glossop, Peak District National Park, England, UK. June 2020.

Graham Eaton / Wain Stones known as The Kiss, millstone grit boulders from the carboniferous, eroded and sculpted. Bleaklow, near Glossop, Peak District National Park, England, UK. June 2020.