In a previous session for 'Digging the Dirt' I described the site of Regis House, next to London Bridge, dug in 1995-6. This was my first introduction to deep stratigraphy and very scary it was, but also one of the best sites I have worked on.The original crossing point for the Romans at the Thames was at Westminster and Watling Street heads in that direction. But they diverted north to cross at what is now London Bridge. Was there an Iron Age settlement at Westminster?The most exciting part of working on this site was seeing what must have been the very first structures to be built for the very first London. These timbers are set into the bank of the Thames (c.80m from the present river) and date to c.AD 52. This is the start of London's first port.