Bolton including Atherton, Farnworth, Hindley, Horwich, Kearsley, Leigh, Little Lever, Tyldesley, Walkden, Westhoughton and Worsley : past and present map, 1842 to present day.
Cassini Maps (Firm).
Great Britain.Ordnance Survey.
[East Garston] : Cassini Publishing,
c2007.
Relief shown by contours, shading, spot heights and hachures.
"4 maps from 4 periods."
A brief history and overview of Ordnance Survey's Old Series mapping.
Sheet indicator showing Old Series maps used.
Reproductions from the first 3 series, originally published at one inch to a mile (1:63,360), have been enlarged to 1:50,000 and re-projected.
"Digitally enhanced reproductions of three series of Ordnance Survey one-inch maps."
Map 1, Ordnance Survey Old Series (1842-1844), sheets 89NE, 89NW, 89SE, 89SW -- Map 2, Ordnance Survey Revised New Series (1903), sheet 75, 76, 84, 85 -- Map 3, Ordnance Survey Popular Edition (1924), sheet 29, 30, 36 -- Map 4, Ordnance Survey 1:50,000 mapping data (present day).