The great pace of urban development (particularly on the south bank of the river) is clearly emphasized by this map, with the city bounded by Camden Town to the north and Walworth in the south and by Chelsea to the west and Limehouse in the east. In a charmingly idiosyncratic feature, distances are measured from St. Pauls Cathedral. The proposed locations of Lambeth Bridge (opened in 1860) and the Thames tunnel at Rotherhithe (opened in 1843) are shown in dotted lines across the span of the river.