Watford, Cassiobury Park and Iron Bridge Lock 1921

Here we see two horse-drawn narrowboats, 'Linnet' and 'Evelyn', at the attractively-sited lock in Cassiobury Park, Watford. This was just one lock in the long climb from the west edge of London up the Chilterns: 25 miles and 42 locks on the Grand Junction Canal (later to become part of the Grand Union), the original main transport artery between London and Birmingham.