Feversham Gorge was eroded at the end of the last ice age by glacial meltwater. The 24m-deep sheer-walled, limestone gorge now has the Beaver River flowing though it Beaver River, Feversham Gorge Technical Details Camera: NIKON D800E Taken: Wednesday 1 July 2015 Focal length: 18mm Aperture: f/45 Exposure: 1/30 second ISO: 100