Isca Dumnoniorum settlement there (modern Caerleon) to be distinguished as "Isca Augusta", while the Devonian Isca was called "Isca Dumnoniorum": Usk of the Dumnonians. Exeter began as settlements on a dry ridge ending in a spur overlooking a navigable river teeming with fish, with fertile land nearby. Although there have been no major prehistoric finds, these advantages suggest the site was occupied early. Coins had been discovered from the Hellenistic kingdoms, suggesting the existence of a settlement trading with the Mediterranean as early as . This is disputed however by Prof T P Wiseman who alleges the hoard was not genuine. Following
Southern England Chalk Formation Southern England Chalk Formation The Chalk Formation of Southern England is a system of chalk downland in the south of England. The formation is perhaps best known for Salisbury Plain, the location of Stonehenge, the Isle of Wight, and the twin ridgeways of the North Downs and South Downs. The North Downs are confined chiefly to the counties of Kent and Surrey, and the South to Sussex. Each forms a well-defined long range springing from the chalk area of Dorset and Hampshire, to which, though broken up into a great number of short ranges and groups of hills, the general