Ordnance Survey Maps - 25 inch 1st edition, Scotland, 1855-1882
County List
- Aberdeenshire - Sheets I - XXX
- Aberdeenshire - Sheets XXXI - LVII
- Aberdeenshire - Sheets LX - XCIV
- Argyllshire and Buteshire - Sheets VI - CXVIII
- Argyllshire and Buteshire - Sheets CXXI - CXCIX
- Argyllshire and Buteshire - Sheets CC - CCLXVI
- Ayrshire - Sheets I - XXIX
- Ayrshire - Sheets XXX - LXXIV
- Banffshire - Sheets I - XLI
- Berwickshire - Sheet I - XXXI
- Caithness - Sheets I - XLIII
- Dumbartonshire - Sheets VI - XXIX
- Dumfriesshire - Sheets II - XLIV
- Dumfriesshire - Sheets XLV - LXIV
- Elginshire (Moray)- Sheets I - XXXIII
- Forfarshire (Angus) - Sheets XIII - XXXIX
- Forfarshire (Angus) - Sheets XL - LV
- Inverness-shire - Mainland - Sheets I - CLI
- Inverness-shire - Hebrides - Sheets XIV - LXV
- Inverness-shire - Isle of Skye - Sheets I - LXXI
- Kincardineshire - Sheets I - XXVIII
- Lanarkshire - Sheets I - XXIV
- Lanarkshire - Sheets XXV - L
- Linlithgowshire (West Lothian) - Sheets I - XI
- Nairnshire - Sheets I - LXXXIX
- Orkney Islands - Sheets LXX - CXXVI
- Peebles-shire - Sheets I - XX
- Perthshire and Clackmannanshire - Sheets VIII - LXXVI
- Perthshire and Clackmannanshire - Sheets LXXX - CVII
- Perthshire and Clackmannanshire - Sheets CVIII - CLIII
- Renfrewshire - Sheets I - XX
- Ross and Cromarty Shires - Mainland - Sheets II- CXXIV
- Roxburghshire - Sheets I - XLVIII
- Selkirkshire - Sheets III - XXII
- Shetland Islands - Sheets II - LXVIII
- Stirlingshire - Sheets VI - CXXXIV
- Sutherland - Sheets V - CXIII
Six Scottish counties have no 25 inch mapping before the 1890s:
- Edinburghshire
- Fife
- Haddingtonshire
- Kinross-shire
- Kirkcudbrightshire
- Wigtonshire.
Together with the Island of Lewis, these counties were surveyed at the six inch scale before the decision in 1855 to survey at 25 inch. More about OS 25 inch maps.