Ordnance Survey Maps - Six-inch England and Wales, 1842 - 1952

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View sheets:

Sheet Number	Date of Survey/Revision	Date of Publication
Merionethshire Sheet I.SW	Surveyed: 1875	1886
Merionethshire Sheet I.SW	Revised: 1899	1901
Merionethshire Sheet I.SW	Revised: 1949	1953
Merionethshire Sheet I.SE	Surveyed: 1875	1886
Merionethshire Sheet I.SE	Revised: 1899	1901
Merionethshire Sheet I.SE	Revised: 1949	1953
Merionethshire Sheet II.SW	Surveyed: 1875	1885
Merionethshire Sheet II.SW	Revised: 1899	1901
Merionethshire Sheet II.SW	Revised: 1949	1953
Merionethshire Sheet III.NE	Surveyed: 1887	1888
Merionethshire Sheet III.SW	Surveyed: 1887	1888
Merionethshire Sheet III.SE	Surveyed: 1887 to 1888	1888
Merionethshire Sheet IV.NW	Surveyed: 1887 to 1888	1888
Merionethshire Sheet IV.NE	Surveyed: 1887	1888
Merionethshire Sheet IV.SW	Surveyed: 1888	1888
Merionethshire Sheet IV.SE	Surveyed: 1887	1888
Merionethshire Sheet V.SE	Surveyed: 1875 to 1889	1887
Merionethshire Sheet V.SE	Revised: 1900	1901
Merionethshire Sheet V.SE	Revised: 1949	1954
Merionethshire Sheet VI.NW	Surveyed: 1875 to 1887	1888
Merionethshire Sheet VI.NW	Revised: 1899	1901
Merionethshire Sheet VI.NW	Revised: 1949	1953
Merionethshire Sheet VI.NE	Surveyed: 1875 to 1887	1888
Merionethshire Sheet VI.NE	Revised: 1899	1901
Merionethshire Sheet VI.NE	Revised: 1949	1953
Merionethshire Sheet VI.SW	Surveyed: 1875 to 1886	1887
Merionethshire Sheet VI.SW	Revised: 1899 to 1900	1901
Merionethshire Sheet VI.SW	Revised: 1949	1954
Merionethshire Sheet VI.SE	Surveyed: 1875 to 1886	1887
Merionethshire Sheet VI.SE	Revised: 1899	1901
Merionethshire Sheet VI.SE	Revised: 1949	1954
Merionethshire Sheet VII.NW	Surveyed: 1875	1889
Merionethshire Sheet VII.NW	Revised: 1899	1901
Merionethshire Sheet VII.NW	Revised: 1949	1953
Merionethshire Sheet VII.NE	Surveyed: 1875	1889
Merionethshire Sheet VII.NE	Revised: 1899	1901
Merionethshire Sheet VII.NE	Revised: 1949	1953
Merionethshire Sheet VII.SW	Surveyed: 1875 to 1886	1888
Merionethshire Sheet VII.SW	Revised: 1899	1901
Merionethshire Sheet VII.SW	Revised: 1949	1953
Merionethshire Sheet VII.SE	Surveyed: 1875 to 1886	1888
Merionethshire Sheet VII.SE	Revised: 1899	1901
Merionethshire Sheet VII.SE	Revised: 1949	1953
Merionethshire Sheet VIII.NW	Surveyed: 1875	1885
Merionethshire Sheet VIII.NW	Revised: 1899	1901
Merionethshire Sheet VIII.NW	Revised: 1949	1953
Merionethshire Sheet VIII.NE	Surveyed: 1875	1885
Merionethshire Sheet VIII.NE	Revised: 1899	1901
Merionethshire Sheet VIII.NE	Revised: 1949	1953
Merionethshire Sheet VIII.SW	Surveyed: 1875	1885
Merionethshire Sheet VIII.SW	Revised: 1899	1901
Merionethshire Sheet VIII.SW	Revised: 1949	1953
Merionethshire Sheet VIII.SE	Surveyed: 1875	1885
Merionethshire Sheet VIII.SE	Revised: 1899	1901
Merionethshire Sheet VIII.SE	Revised: 1949	1953
Merionethshire Sheet IX.SW	Surveyed: 1875	1885
Merionethshire Sheet IX.SW	Revised: 1899	1901
Merionethshire Sheet IX.SW	Revised: 1949	1953
Merionethshire Sheet X.SE	Surveyed: 1887	1888
Merionethshire Sheet XI.NW	Surveyed: 1887	1888
Merionethshire Sheet XI.NE	Surveyed: 1887	1888
Merionethshire Sheet XI.NE	Revised: 1899	1901
Merionethshire Sheet XI.NE	Revised: 1899	ca. 1939
Merionethshire Sheet XI.NE	Revised: 1899	ca. 1946
Merionethshire Sheet XI.NE	Revised: 1949	1953
Merionethshire Sheet XI.SW	Surveyed: 1887 to 1888	1888
Merionethshire Sheet XI.SE	Surveyed: 1887	1888
Merionethshire Sheet XI.SE	Revised: 1899	1901
Merionethshire Sheet XI.SE	Revised: 1949	1953
Merionethshire Sheet XII.NW	Surveyed: 1887 to 1888	1888
Merionethshire Sheet XII.NW	Revised: 1899	1901
Merionethshire Sheet XII.NW	Revised: 1949	1953
Merionethshire Sheet XII.NE	Surveyed: 1875 to 1887	1888
Merionethshire Sheet XII.SW	Surveyed: 1887	1888
Merionethshire Sheet XII.SW	Revised: 1899	1901
Merionethshire Sheet XII.SW	Revised: 1949	1953
Merionethshire Sheet XII.SE	Surveyed: 1887	1888
Merionethshire Sheet XII.SE	Revised: 1899 to 1900	1901
Merionethshire Sheet XII.SE	Revised: 1949	1953
Merionethshire Sheet XIII.NW	Surveyed: 1875 to 1887	1888
Merionethshire Sheet XIII.NE	Surveyed: 1875 to 1887	1887
Merionethshire Sheet XIII.NE	Revised: 1899 to 1900	1901
Merionethshire Sheet XIII.NE	Revised: 1949	1953
Merionethshire Sheet XIII.SW	Surveyed: 1887	1887
Merionethshire Sheet XIII.SW	Revised: 1899 to 1900	1901
Merionethshire Sheet XIII.SW	Revised: 1899 to 1900	ca. 1931
Merionethshire Sheet XIII.SW	Revised: 1899 to 1900	ca. 1939
Merionethshire Sheet XIII.SW	Revised: 1899 to 1900	ca. 1949
Merionethshire Sheet XIII.SW	Revised: 1949	1953
Merionethshire Sheet XIII.SE	Surveyed: 1887	1887
Merionethshire Sheet XIII.SE	Revised: 1899 to 1900	1901
Merionethshire Sheet XIII.SE	Revised: 1949	1953
Merionethshire Sheet XIV.NW	Surveyed: 1886	1887
Merionethshire Sheet XIV.NW	Revised: 1899	1901
Merionethshire Sheet XIV.NW	Revised: 1949	1953
Merionethshire Sheet XIV.NE	Surveyed: 1875 to 1886	1887
Merionethshire Sheet XIV.NE	Revised: 1899 to 1900	1901
Merionethshire Sheet XIV.NE	Revised: 1949	1953
Merionethshire Sheet XIV.SW	Surveyed: 1886	1887
Merionethshire Sheet XIV.SW	Revised: 1899	1901
Merionethshire Sheet XIV.SW	Revised: 1949	1953
Merionethshire Sheet XIV.SE	Surveyed: 1886	1887
Merionethshire Sheet XIV.SE	Revised: 1899	1901
Merionethshire Sheet XIV.SE	Revised: 1949	1953
Merionethshire Sheet XV.NW	Surveyed: 1875 to 1886	1886
Merionethshire Sheet XV.NW	Revised: 1899 to 1900	1901
Merionethshire Sheet XV.NW	Revised: 1949	1953
Merionethshire Sheet XV.NE	Surveyed: 1875 to 1886	1888
Merionethshire Sheet XV.NE	Revised: 1899	1901
Merionethshire Sheet XV.NE	Revised: 1949	1954
Merionethshire Sheet XV.SW	Surveyed: 1886	1886
Merionethshire Sheet XV.SW	Revised: 1899 to 1900	1901
Merionethshire Sheet XV.SW	Revised: 1949	1953
Merionethshire Sheet XV.SE	Surveyed: 1875 to 1886	1887
Merionethshire Sheet XV.SE	Revised: 1900	1901
Merionethshire Sheet XV.SE	Revised: 1949	1953
Merionethshire Sheet XVI.NW	Surveyed: 1875	1884
Merionethshire Sheet XVI.NW	Revised: 1899	1901
Merionethshire Sheet XVI.NW	Revised: 1949	1953
Merionethshire Sheet XVI.NE	Surveyed: 1875	1884
Merionethshire Sheet XVI.NE	Revised: 1899	1901
Merionethshire Sheet XVI.NE	Revised: 1949	1953
Merionethshire Sheet XVI.SW	Surveyed: 1875 to 1886	1889
Merionethshire Sheet XVI.SW	Revised: 1900	1901
Merionethshire Sheet XVI.SW	Revised: 1949	1953
Merionethshire Sheet XVI.SE	Surveyed: 1875	1884
Merionethshire Sheet XVI.SE	Revised: 1899	1901
Merionethshire Sheet XVI.SE	Revised: 1949	1953
Merionethshire Sheet XVII.NW	Surveyed: 1875	1885
Merionethshire Sheet XVII.NW	Revised: 1899	1902
Merionethshire Sheet XVII.NW	Revised: 1949	1953
Merionethshire Sheet XVIII.NE	Surveyed: 1887	1888
Merionethshire Sheet XVIII.SE	Surveyed: 1887	1888
Merionethshire Sheet XVIII.SE	Revised: 1899 to 1900	1901
Merionethshire Sheet XVIII.SE	Revised: 1949	1953
Merionethshire Sheet XIX.NW	Surveyed: 1887	1888
Merionethshire Sheet XIX.NW	Revised: 1899 to 1900	1901
Merionethshire Sheet XIX.NW	Revised: 1899	ca. 1939
Merionethshire Sheet XIX.NW	Revised: 1899	ca. 1948
Merionethshire Sheet XIX.NW	Revised: 1949 to 1951	1954
Merionethshire Sheet XIX.NE	Surveyed: 1887	1888
Merionethshire Sheet XIX.NE	Revised: 1899 to 1900	1901
Merionethshire Sheet XIX.NE	Revised: 1949	1953
Merionethshire Sheet XIX.SW	Surveyed: 1887	1888
Merionethshire Sheet XIX.SW	Revised: 1899	1901
Merionethshire Sheet XIX.SW	Revised: 1949	1953
Merionethshire Sheet XIX.SE	Surveyed: 1887	1888
Merionethshire Sheet XIX.SE	Revised: 1899 to 1900	1901
Merionethshire Sheet XIX.SE	Revised: 1949	1953
Merionethshire Sheet XX.NW	Surveyed: 1887	1888
Merionethshire Sheet XX.NW	Revised: 1899	1901
Merionethshire Sheet XX.NW	Revised: 1949	1953
Merionethshire Sheet XX.NE	Surveyed: 1887	1888
Merionethshire Sheet XX.NE	Revised: 1899	1901
Merionethshire Sheet XX.NE	Revised: 1949	1953
Merionethshire Sheet XX.SW	Surveyed: 1887	1888
Merionethshire Sheet XX.SW	Revised: 1899	1901
Merionethshire Sheet XX.SW	Revised: 1949	1953
Merionethshire Sheet XX.SE	Surveyed: 1887	1888
Merionethshire Sheet XX.SE	Revised: 1899 to 1900	1901
Merionethshire Sheet XX.SE	Revised: 1949	1954
Merionethshire Sheet XXI.NW	Surveyed: 1887	1887
Merionethshire Sheet XXI.NW	Revised: 1899 to 1900	1901
Merionethshire Sheet XXI.NW	Revised: 1899	ca. 1931
Merionethshire Sheet XXI.NW	Revised: 1899	ca. 1939
Merionethshire Sheet XXI.NW	Revised: 1949	1953
Merionethshire Sheet XXI.NE	Surveyed: 1887	1887
Merionethshire Sheet XXI.NE	Revised: 1899 to 1900	1901
Merionethshire Sheet XXI.NE	Revised: 1949	1953
Merionethshire Sheet XXI.SW	Surveyed: 1887	1887
Merionethshire Sheet XXI.SW	Revised: 1899 to 1900	1901
Merionethshire Sheet XXI.SW	Revised: 1899 to 1900	ca. 1938
Merionethshire Sheet XXI.SW	Revised: 1899 to 1900	ca. 1939
Merionethshire Sheet XXI.SW	Revised: 1899 to 1900	ca. 1950
Merionethshire Sheet XXI.SW	Revised: 1949	1953
Merionethshire Sheet XXI.SE	Surveyed: 1887	1887
Merionethshire Sheet XXI.SE	Revised: 1900	1901
Merionethshire Sheet XXI.SE	Revised: 1900	ca. 1931
Merionethshire Sheet XXI.SE	Revised: 1900	ca. 1939
Merionethshire Sheet XXI.SE	Revised: 1949	1953
Merionethshire Sheet XXII.NW	Surveyed: 1886	1887
Merionethshire Sheet XXII.NW	Revised: 1899	1901
Merionethshire Sheet XXII.NW	Revised: 1949	1953
Merionethshire Sheet XXII.NE	Surveyed: 1886	1887
Merionethshire Sheet XXII.NE	Revised: 1899	1901
Merionethshire Sheet XXII.NE	Revised: 1949	1953
Merionethshire Sheet XXII.SW	Surveyed: 1886	1887
Merionethshire Sheet XXII.SW	Revised: 1899 to 1900	1901
Merionethshire Sheet XXII.SW	Revised: 1949	1953
Merionethshire Sheet XXII.SE	Surveyed: 1886	1887
Merionethshire Sheet XXII.SE	Revised: 1899	1901
Merionethshire Sheet XXII.SE	Revised: 1949	1953
Merionethshire Sheet XXIII.NW	Surveyed: 1886	1886
Merionethshire Sheet XXIII.NW	Revised: 1899 to 1900	1901
Merionethshire Sheet XXIII.NW	Revised: 1949	1953
Merionethshire Sheet XXIII.NE	Surveyed: 1886	1886
Merionethshire Sheet XXIII.NE	Revised: 1900	1901
Merionethshire Sheet XXIII.NE	Revised: 1949	1953
Merionethshire Sheet XXIII.SW	Surveyed: 1886	1886
Merionethshire Sheet XXIII.SW	Revised: 1900	1901
Merionethshire Sheet XXIII.SW	Revised: 1899 to 1900	ca. 1933
Merionethshire Sheet XXIII.SW	Revised: 1899 to 1900	ca. 1951
Merionethshire Sheet XXIII.SW	Revised: 1949	1953
Merionethshire Sheet XXIII.SE	Revised: 1900	1901
Merionethshire Sheet XXIII.SE	Revised: 1900	ca. 1931
Merionethshire Sheet XXIII.SE	Revised: 1900	ca. 1948
Merionethshire Sheet XXIII.SE	Revised: 1949	1953
Merionethshire Sheet XXIV.NW	Surveyed: 1875 to 1886	1887
Merionethshire Sheet XXIV.NW	Revised: 1900	1902
Merionethshire Sheet XXIV.NW	Revised: 1949	1953
Merionethshire Sheet XXIV.SW	Revised: 1900	1902
Merionethshire Sheet XXIV.SW	Revised: 1900	ca. 1949
Merionethshire Sheet XXIV.SW	Revised: 1949	1954
Merionethshire Sheet XXV.NE	Surveyed: 1887	1888
Merionethshire Sheet XXV.NE	Revised: 1899	1901
Merionethshire Sheet XXV.NE	Revised: 1949	ca. 1953
Merionethshire Sheet XXV.SE	Surveyed: 1887	1888
Merionethshire Sheet XXV.SE	Revised: 1900	1901
Merionethshire Sheet XXV.SE	Revised: 1949	1954
Merionethshire Sheet XXVI.NW	Surveyed: 1887	1888
Merionethshire Sheet XXVI.NW	Revised: 1899	1901
Merionethshire Sheet XXVI.NW	Revised: 1949	1953
Merionethshire Sheet XXVI.NE	Surveyed: 1887	1888
Merionethshire Sheet XXVI.NE	Revised: 1899	1901
Merionethshire Sheet XXVI.NE	Revised: 1949	1953
Merionethshire Sheet XXVI.SW	Surveyed: 1887	1888
Merionethshire Sheet XXVI.SW	Revised: 1900	1901
Merionethshire Sheet XXVI.SW	Revised: 1949	1954
Merionethshire Sheet XXVI.SE	Surveyed: 1887	1888
Merionethshire Sheet XXVI.SE	Revised: 1900	1901
Merionethshire Sheet XXVI.SE	Revised: 1949	1953
Merionethshire Sheet XXVII.NW	Surveyed: 1887	1888
Merionethshire Sheet XXVII.NW	Revised: 1900	1901
Merionethshire Sheet XXVII.NW	Revised: 1949	1953
Merionethshire Sheet XXVII.NE	Surveyed: 1887	1888
Merionethshire Sheet XXVII.NE	Revised: 1899 to 1900	1901
Merionethshire Sheet XXVII.NE	Revised: 1949	1954
Merionethshire Sheet XXVII.SW	Surveyed: 1887	1888
Merionethshire Sheet XXVII.SW	Revised: 1899 to 1900	1901
Merionethshire Sheet XXVII.SW	Revised: 1949	1954
Merionethshire Sheet XXVII.SE	Surveyed: 1887	1888
Merionethshire Sheet XXVII.SE	Revised: 1899 to 1900	1901
Merionethshire Sheet XXVII.SE	Revised: 1949	1954
Merionethshire Sheet XXVIII.NW	Surveyed: 1887	1888
Merionethshire Sheet XXVIII.NW	Revised: 1899 to 1900	1901
Merionethshire Sheet XXVIII.NW	Revised: 1899 to 1900	ca. 1931
Merionethshire Sheet XXVIII.NW	Revised: 1899 to 1900	ca. 1939
Merionethshire Sheet XXVIII.NW	Revised: 1899 to 1900	ca. 1949
Merionethshire Sheet XXVIII.NW	Revised: 1949	1953
Merionethshire Sheet XXVIII.NE	Surveyed: 1887	1888
Merionethshire Sheet XXVIII.NE	Revised: 1900	1901
Merionethshire Sheet XXVIII.NE	Revised: 1900	ca. 1931
Merionethshire Sheet XXVIII.NE	Revised: 1900	ca. 1939
Merionethshire Sheet XXVIII.NE	Revised: 1900	ca. 1949
Merionethshire Sheet XXVIII.NE	Revised: 1949	1953
Merionethshire Sheet XXVIII.SW	Surveyed: 1887	1888
Merionethshire Sheet XXVIII.SW	Revised: 1900	1901
Merionethshire Sheet XXVIII.SW	Revised: 1900	ca. 1931
Merionethshire Sheet XXVIII.SW	Revised: 1900	ca. 1939
Merionethshire Sheet XXVIII.SW	Revised: 1900	ca. 1949
Merionethshire Sheet XXVIII.SW	Revised: 1949	1953
Merionethshire Sheet XXVIII.SE	Surveyed: 1887	1888
Merionethshire Sheet XXVIII.SE	Revised: 1900	1901
Merionethshire Sheet XXVIII.SE	Revised: 1900	ca. 1931
Merionethshire Sheet XXVIII.SE	Revised: 1900	ca. 1939
Merionethshire Sheet XXVIII.SE	Revised: 1900	ca. 1948
Merionethshire Sheet XXVIII.SE	Revised: 1949	1953
Merionethshire Sheet XXIX.NW	Surveyed: 1887	1887
Merionethshire Sheet XXIX.NW	Revised: 1900	1901
Merionethshire Sheet XXIX.NW	Revised: 1949	1953
Merionethshire Sheet XXIX.NE	Revised: 1900	1901
Merionethshire Sheet XXIX.NE	Revised: 1899 to 1900	ca. 1935
Merionethshire Sheet XXIX.NE	Revised: 1949	1953
Merionethshire Sheet XXIX.SW	Surveyed: 1887	1887
Merionethshire Sheet XXIX.SW	Revised: 1900	1901
Merionethshire Sheet XXIX.SW	Revised: 1900	ca. 1939
Merionethshire Sheet XXIX.SW	Revised: 1900	ca. 1950
Merionethshire Sheet XXIX.SW	Revised: 1949	1953
Merionethshire Sheet XXIX.SE	Revised: 1900	1901
Merionethshire Sheet XXIX.SE	Revised: 1949	1953
Merionethshire Sheet XXX.NW	Revised: 1900	1901
Merionethshire Sheet XXX.NW	Revised: 1900	ca. 1936
Merionethshire Sheet XXX.NW	Revised: 1949	1953
Merionethshire Sheet XXXI.NE & XXXI.SE	Surveyed: 1887	1888
Merionethshire Sheet XXXI.NE	Revised: 1900	1901
Merionethshire Sheet XXXI.NE	Revised: 1949	1953
Merionethshire Sheet XXXI.SE & XXXII.SW	Revised: 1900	1901
Merionethshire Sheet XXXII.NW	Surveyed: 1887	1888
Merionethshire Sheet XXXII.NW	Revised: 1900	1901
Merionethshire Sheet XXXII.NW	Revised: 1949	1954
Merionethshire Sheet XXXII.NE	Surveyed: 1887	1888
Merionethshire Sheet XXXII.NE	Revised: 1900	1901
Merionethshire Sheet XXXII.NE	Revised: 1949	1953
Merionethshire Sheet XXXII.SW	Surveyed: 1887	1888
Merionethshire Sheet XXXI.SE & XXXII.SW	Revised: 1949	1954
Merionethshire Sheet XXXII.SE	Surveyed: 1887	1888
Merionethshire Sheet XXXII.SE	Revised: 1900	1901
Merionethshire Sheet XXXII.SE	Revised: 1949	1953
Merionethshire Sheet XXXIII.NW	Surveyed: 1887	1888
Merionethshire Sheet XXXIII.NW	Revised: 1900	1901
Merionethshire Sheet XXXIII.NW	Revised: 1949	1953
Merionethshire Sheet XXXIII.NE	Surveyed: 1887	1888
Merionethshire Sheet XXXIII.NE	Revised: 1900	1901
Merionethshire Sheet XXXIII.NE	Revised: 1949	1954
Merionethshire Sheet XXXIII.SW	Surveyed: 1887	1888
Merionethshire Sheet XXXIII.SW	Revised: 1900	1901
Merionethshire Sheet XXXIII.SW	Revised: 1949	1954
Merionethshire Sheet XXXIII.SE	Surveyed: 1887	1888
Merionethshire Sheet XXXIII.SE	Revised: 1900	1901
Merionethshire Sheet XXXIII.SE	Revised: 1938	ca. 1948
Merionethshire Sheet XXXIII.SE	Revised: 1949	1954
Merionethshire Sheet XXXIV.NW	Surveyed: 1887	1888
Merionethshire Sheet XXXIV.NW	Revised: 1900	1901
Merionethshire Sheet XXXIV.NW	Revised: 1949	1953
Merionethshire Sheet XXXIV.NE	Surveyed: 1887	1888
Merionethshire Sheet XXXIV.NE	Revised: 1900	1901
Merionethshire Sheet XXXIV.NE	Revised: 1900	ca. 1931
Merionethshire Sheet XXXIV.NE	Revised: 1900	ca. 1939
Merionethshire Sheet XXXIV.NE	Revised: 1900	ca. 1949
Merionethshire Sheet XXXIV.NE	Revised: 1949	1953
Merionethshire Sheet XXXIV.SW	Surveyed: 1887	1888
Merionethshire Sheet XXXIV.SW	Revised: 1900	1901
Merionethshire Sheet XXXIV.SW	Revised: 1900	ca. 1939
Merionethshire Sheet XXXIV.SW	Revised: 1949	1954
Merionethshire Sheet XXXIV.SE	Surveyed: 1887	1888
Merionethshire Sheet XXXIV.SE	Revised: 1900	1901
Merionethshire Sheet XXXIV.SE	Revised: 1900	ca. 1939
Merionethshire Sheet XXXIV.SE	Revised: 1949	1954
Merionethshire Sheet XXXV.NW	Surveyed: 1887	1888
Merionethshire Sheet XXXV.NW	Revised: 1900	1901
Merionethshire Sheet XXXV.NW	Revised: 1900	ca. 1931
Merionethshire Sheet XXXV.NW	Revised: 1900	ca. 1951
Merionethshire Sheet XXXV.NW	Revised: 1949	1953
Merionethshire Sheet XXXV.NE	Revised: 1900	1901
Merionethshire Sheet XXXV.NE	Revised: 1900	ca. 1931
Merionethshire Sheet XXXV.NE	Revised: 1900	ca. 1948
Merionethshire Sheet XXXV.NE	Revised: 1949	1953
Merionethshire Sheet XXXV.SW	Surveyed: 1887	1887
Merionethshire Sheet XXXV.SW	Revised: 1900	1901
Merionethshire Sheet XXXV.SW	Revised: 1949	1953
Merionethshire Sheet XXXV.SE	Revised: 1900	1901
Merionethshire Sheet XXXV.SE	Revised: 1900	ca. 1931
Merionethshire Sheet XXXV.SE	Revised: 1949	1953
Merionethshire Sheet XXXVI.NW	Surveyed: 1887	1888
Merionethshire Sheet XXXVI.NW	Revised: 1900	1901
Merionethshire Sheet XXXVI.NW	Revised: 1938	ca. 1948
Merionethshire Sheet XXXVI.NW	Revised: 1949	1953
Merionethshire Sheet XXXVI.NE	Surveyed: 1887	1888
Merionethshire Sheet XXXVI.NE	Revised: 1900	1901
Merionethshire Sheet XXXVI.NE	Revised: 1949 to 1951	1954
Merionethshire Sheet XXXVI.SW	Surveyed: 1887	1888
Merionethshire Sheet XXXVI.SW	Revised: 1900	1901
Merionethshire Sheet XXXVI.SW	Revised: 1938	ca. 1948
Merionethshire Sheet XXXVI.SW	Revised: 1949	1954
Merionethshire Sheet XXXVI.SE	Surveyed: 1887	1888
Merionethshire Sheet XXXVI.SE	Revised: 1900	1901
Merionethshire Sheet XXXVI.SE	Revised: 1900	ca. 1932
Merionethshire Sheet XXXVI.SE	Revised: 1900	ca. 1939
Merionethshire Sheet XXXVI.SE	Revised: 1949	1954
Merionethshire Sheet XXXVII.NW	Surveyed: 1887	1888
Merionethshire Sheet XXXVII.NW	Revised: 1900	1901
Merionethshire Sheet XXXVII.NW	Revised: 1949	1954
Merionethshire Sheet XXXVII.NE	Surveyed: 1887	1888
Merionethshire Sheet XXXVII.NE	Revised: 1900	1902
Merionethshire Sheet XXXVII.NE	Revised: 1938	ca. 1948
Merionethshire Sheet XXXVII.NE	Revised: 1949	1954
Merionethshire Sheet XXXVII.SW	Surveyed: 1887	1888
Merionethshire Sheet XXXVII.SW	Revised: 1900	1901
Merionethshire Sheet XXXVII.SW	Revised: 1900	ca. 1935
Merionethshire Sheet XXXVII.SW	Revised: 1900	ca. 1939
Merionethshire Sheet XXXVII.SW	Revised: 1949	1954
Merionethshire Sheet XXXVII.SE	Surveyed: 1887	1888
Merionethshire Sheet XXXVII.SE	Revised: 1900	1901
Merionethshire Sheet XXXVII.SE	Revised: 1900	ca. 1932
Merionethshire Sheet XXXVII.SE	Revised: 1900	ca. 1939
Merionethshire Sheet XXXVII.SE	Revised: 1949	1954
Merionethshire Sheet XXXVIII.NW	Surveyed: 1887	1887
Merionethshire Sheet XXXVIII.NW	Revised: 1900	1901
Merionethshire Sheet XXXVIII.NW	Revised: 1900	ca. 1939
Merionethshire Sheet XXXVIII.NW	Revised: 1949	1954
Merionethshire Sheet XXXVIII.NE	Surveyed: 1887	1887
Merionethshire Sheet XXXVIII.NE	Revised: 1900	1901
Merionethshire Sheet XXXVIII.NE	Revised: 1949	1954
Merionethshire Sheet XXXVIII.SW	Surveyed: 1887	1887
Merionethshire Sheet XXXVIII.SW	Revised: 1900	1901
Merionethshire Sheet XXXVIII.SW	Revised: 1900	ca. 1939
Merionethshire Sheet XXXVIII.SW	Revised: 1949	1954
Merionethshire Sheet XXXVIII.SE	Revised: 1900	1902
Merionethshire Sheet XXXVIII.SE	Revised: 1949	1954
Merionethshire Sheet XXXIX.NW	Surveyed: 1887	1887
Merionethshire Sheet XXXIX.NW	Revised: 1900	1901
Merionethshire Sheet XXXIX.NW	Revised: 1949	1953
Merionethshire Sheet XXXIX.NE	Surveyed: 1886	1887
Merionethshire Sheet XXXIX.NE	Revised: 1900	1901
Merionethshire Sheet XXXIX.NE	Revised: 1900	ca. 1938
Merionethshire Sheet XXXIX.NE	Revised: 1949	1953
Merionethshire Sheet XXXIX.SW	Surveyed: 1887	1887
Merionethshire Sheet XXXIX.SW	Revised: 1900	1902
Merionethshire Sheet XXXIX.SW	Revised: 1949	1954
Merionethshire Sheet XXXIX.SE	Surveyed: 1886	1887
Merionethshire Sheet XXXIX.SE	Revised: 1900	1902
Merionethshire Sheet XXXIX.SE	Revised: 1900	ca. 1932
Merionethshire Sheet XXXIX.SE	Revised: 1949	1953
Merionethshire Sheet XL.SE	Surveyed: 1887	1887
Merionethshire Sheet XL.SE	Revised: 1900	1901
Merionethshire Sheet XL.SE	Revised: 1900	ca. 1936
Merionethshire Sheet XL.SE	Revised: 1900	ca. 1939
Merionethshire Sheet XL.SE	Revised: 1948	1953
Merionethshire Sheet XLI.NW	Surveyed: 1887	1887
Merionethshire Sheet XLI.NW	Revised: 1900	1901
Merionethshire Sheet XLI.NW	Revised: 1900	ca. 1938
Merionethshire Sheet XLI.NW	Revised: 1900	ca. 1939
Merionethshire Sheet XLI.NW	Revised: 1949	1954
Merionethshire Sheet XLI.NE	Surveyed: 1887	1887
Merionethshire Sheet XLI.NE	Revised: 1900	1901
Merionethshire Sheet XLI.NE	Revised: 1900	ca. 1932
Merionethshire Sheet XLI.NE	Revised: 1900	ca. 1939
Merionethshire Sheet XLI.NE	Revised: 1949	1954
Merionethshire Sheet XLI.SW	Surveyed: 1887	1888
Merionethshire Sheet XLI.SW	Revised: 1900	1901
Merionethshire Sheet XLI.SW	Revised: 1900	ca. 1932
Merionethshire Sheet XLI.SW	Revised: 1900	ca. 1938
Merionethshire Sheet XLI.SW	Revised: 1900	ca. 1939
Merionethshire Sheet XLI.SW	Revised: 1948	1953
Merionethshire Sheet XLI.SE	Surveyed: 1887	1888
Merionethshire Sheet XLI.SE	Revised: 1900	1901
Merionethshire Sheet XLI.SE	Revised: 1948 to 1949	1953
Merionethshire Sheet XLII.NW	Surveyed: 1887	1888
Merionethshire Sheet XLII.NW	Revised: 1900	1901
Merionethshire Sheet XLII.NW	Revised: 1900	ca. 1932
Merionethshire Sheet XLII.NW	Revised: 1900	ca. 1938
Merionethshire Sheet XLII.NW	Revised: 1949	1954
Merionethshire Sheet XLII.NE	Surveyed: 1887	1888
Merionethshire Sheet XLII.NE	Revised: 1900	1901
Merionethshire Sheet XLII.NE	Revised: 1900	ca. 1932
Merionethshire Sheet XLII.NE	Revised: 1949	1954
Merionethshire Sheet XLII.SW	Surveyed: 1887	1887
Merionethshire Sheet XLII.SW	Revised: 1900	1901
Merionethshire Sheet XLII.SW	Revised: 1900	ca. 1938
Merionethshire Sheet XLII.SW	Revised: 1948 to 1949	1953
Merionethshire Sheet XLII.SE	Surveyed: 1887	1888
Merionethshire Sheet XLII.SE	Revised: 1900	1902
Merionethshire Sheet XLII.SE	Revised: 1900	ca. 1937
Merionethshire Sheet XLII.SE	Revised: 1948	1953
Merionethshire Sheet XLIII.NW	Revised: 1900	1901
Merionethshire Sheet XLIII.NW	Revised: 1949	1954
Merionethshire Sheet XLIII.NE	Revised: 1900	1902
Merionethshire Sheet XLIII.NE	Revised: 1949	1954
Merionethshire Sheet XLV.NE	Surveyed: 1887	1887
Merionethshire Sheet XLV.NE	Revised: 1900	1901
Merionethshire Sheet XLV.NE	Revised: 1900	ca. 1937
Merionethshire Sheet XLV.NE	Revised: 1900	ca. 1939
Merionethshire Sheet XLV.NE	Revised: 1948	1953
Merionethshire Sheet XLV.SE	Surveyed: 1887	1887
Merionethshire Sheet XLV.SE	Revised: 1900	1901
Merionethshire Sheet XLV.SE	Revised: 1948	1953
Merionethshire Sheet XLVI.NW	Surveyed: 1887	1887
Merionethshire Sheet XLVI.NW	Revised: 1900	1901
Merionethshire Sheet XLVI.NW	Revised: 1948	1953
Merionethshire Sheet XLVI.NE	Surveyed: 1887	1887
Merionethshire Sheet XLVI.NE	Revised: 1900	1901
Merionethshire Sheet XLVI.NE	Revised: 1900	ca. 1932
Merionethshire Sheet XLVI.NE	Revised: 1948	1953
Merionethshire Sheet XLVI.SW	Surveyed: 1887	1887
Merionethshire Sheet XLVI.SW	Revised: 1900	1901
Merionethshire Sheet XLVI.SW	Revised: 1900	ca. 1932
Merionethshire Sheet XLVI.SW	Revised: 1938	ca. 1948
Merionethshire Sheet XLVI.SW	Revised: 1948	1953
Merionethshire Sheet XLVI.SE	Surveyed: 1887	1887
Merionethshire Sheet XLVI.SE	Revised: 1900	1901
Merionethshire Sheet XLVI.SE	Revised: 1900	ca. 1932
Merionethshire Sheet XLVI.SE	Revised: 1948	1953
Merionethshire Sheet XLVII.NW	Surveyed: 1887	1887
Merionethshire Sheet XLVII.NW	Revised: 1900	1901
Merionethshire Sheet XLVII.NW	Revised: 1900	ca. 1932
Merionethshire Sheet XLVII.NW	Revised: 1948	1952
Merionethshire Sheet XLVII.NE	Surveyed: 1887	1887
Merionethshire Sheet XLVII.NE	Revised: 1900	1902
Merionethshire Sheet XLVII.NE	Revised: 1948	1953
Merionethshire Sheet XLVII.SW	Surveyed: 1887	1887
Merionethshire Sheet XLVII.SW	Revised: 1900	1902
Merionethshire Sheet XLVII.SW	Revised: 1948	1953
Merionethshire Sheet XLVII.SE	Surveyed: 1887	1887
Merionethshire Sheet XLVII.SE	Revised: 1900	1902
Merionethshire Sheet XLVII.SE	Revised: 1938	ca. 1943
Merionethshire Sheet XLVII.SE	Revised: 1948	1953
Merionethshire Sheet XLVIII.NW	Surveyed: 1887	1887
Merionethshire Sheet XLVIII.NW	Revised: 1900	1902
Merionethshire Sheet XLVIII.NW	Revised: 1938	ca. 1948
Merionethshire Sheet XLVIII.NE	Surveyed: 1887	1887
Merionethshire Sheet XLVIII.NE	Revised: 1900	1902
Merionethshire Sheet XLVIII.SW	Revised: 1900	1902
Merionethshire Sheet XLVIII.SE	Revised: 1900	1901
Merionethshire Sheet XLIX.NW	Revised: 1900	1902