River Mole earth, about a mile from "Darking" in "Surrey", and after some two miles sees the light againe, which to be certaine hath been affirmed by Inhabitants thereabout reporting triall made of it. John Milton (c. 1562–1647) described the river as In a similar vein, Alexander Pope (1688–1744) wrote in his poem "Windsor Forest" (first published 1713) Robert Bloomfield (1766–1823) writes the following lines about the Mole Valley in his 1806 poem "Wild Flowers". Extract from "The River Mole or Emlyn Stream" by Mary Drinkwater Bethune, which was published in 1839. The major tributaries of the River Mole are the Ifield
River Mole Dorking drains an area of , of which approximately 60% is on Wealden Clay or Atherfield Clay, 20% is on Tunbridge Wells Sand and 20% is on greensand. Brickearth deposits are common in the valley around Betchworth and east of Dorking. The upper Mole catchment is dominated by a single broad terrace, which runs continuously from the entry to the Mole Gap as far south as Tilgate Forest. Above Meath Green (near Horley), the terrace corresponds to the flood plain of the river, however from this point downstream to Brockham, the river cuts a narrow trench no more than wide.