Here Cotton uses epic similies to describe the powerful rivers of the Peak District. He refers to a cave as 'Satan's fundament', rather than its more common 'yet coarser name' the Devil's Arse. This name had been in use locally since Norman times.
About The Genuine works of Charles Cotton
This poem is an account of a visit to the famous 'Devil's Arse' cave in the Peak District. Cotton first published this satirical poem in 1681, just five years after Hobbes' poem on the 'Wonders of the Peak' was translated into English. The poems of both Hobbes and Cotton encouraged travellers seeking sensational experiences to travel to Derbyshire.
The poem is included in 'The Genuine Works of Charles Cotton', a miscellaneous collection of Cotton's most popular works, published posthumously in 1715. The book also contains two burlesque poems, and a treatise on horticulture. Cotton was a highly respected poet as well as an accomplished angler and horticulturalist.