Academics are trying to work out exactly how a farmer’s field was split in two by a huge trench as millions of gallons of floodwater suddenly tore through the land.
Locals dubbed the 200-yard long phenomenon the Grand Canyon of Durham after it suddenly appeared overnight in the green belt beside the River Wear, downstream from the city centre.
It ripped a 15ft-deep gully through the land farmed by Houghall College and could have gouged out the earth by moving as quickly as walking pace.





