E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Gogmagog Hill (The).
The higher of two hills, some three miles south-east of Cambridge. The legend is that Gogmagog was a huge giant who fell in love with the nymph Granta, but the saucy lady would have nothing to say to the big bulk, afterwards metamorphosed into the hill which bears his name. (Drayton: Polyolbion, xxi.)