These maps are highly detailed. They are taken from the OS 1:2,500 (or 25 inch) maps and reduced to about 15 inches to the mile. They show streets with individual houses, tram tracks, railway tracks and even signals, factories, wharves and such details as fountains and water troughs. They will provide hours of fascination for historians and genealogists. The maps are neatly folded and each includes a specially written introduction to the area.

This detailed map covers the central area of Chorley, with coverage extending south and east to Cowling and Limbrick. The town centre is shown in detail and features include railway with station, goods yard and Chorley Wagon Works; Market Place, cattle market, Town Hall, St George's church, Croft Mill, St George's Park, Moor Mill, Weldbank Mill, Greenfield Mill, Albert Mills, St James's church, Lancaster Canal, Cowling Mill, Weir Mill, Workhouse etc. A directory of private residents is included on the reverse.

The map links up with Sheet 77.08 North Chorley to the north.