These detailed maps maps normally cover an area of about one and a half miles by one mile. Each map includes an introduction. The London maps link up with those for Middlesex to form a major series for the Greater London area.

The three versions of this map show how the area developed across the years. The maps each cover the same area stretching from Fitzroy Park eastward to Hazellville Road; from Shepherds Hill Road southward to Highgate Cemetery. Features include Park House Penitentiary, Highgate Cemetery, Waterlow Park, Shepherds Hill, a stretch of the GNR High Barnet line, including Highgate station and part of Crouch End station, St Pancras Infirmary, Holborn Union Infirmary, workhouse, Archway. Streets include North Road, North Hill, The Grove, Pond Square, Hampstead Lane, Highgate Hill, Archway Road, St John's Road. The 1894 and 1913 maps include extracts from early directories; the 1869 map has a description of Highgate Cemetery from Walford's Old & New London.

The map links up with Sheets 11 Muswell Hill to the north, 18 Kenwood to the west, 20 Finsbury Park to the east, and 28 Gospel Oak to the south.