Ordnance Survey Maps - Six-inch 1st edition, Scotland, 1843-1882
Caithness
- View a graphic index of sheets for this county
| Sheet Number | Date of Survey | Date of Publication |
| Sheet I | 1873 | 1876 |
| Sheet II (Inset IIA) | 1873 | 1877 |
| Sheet III (Inset IIIA) | 1873 | 1877 |
| Sheet IV | 1872 | 1876 |
| Sheet V | 1872 | 1877 |
| Sheet VI | 1873 | 1877 |
| Sheet VII | 1873 | 1877 |
| Sheet VIII | 1873 | 1877 |
| Sheet IX | 1873 | 1876 |
| Sheet X | 1872 | 1877 |
| Sheet XI | 1872 | 1876 |
| Sheet XII | 1872 | 1877 |
| Sheet XIII | 1873 | 1877 |
| Sheet XIV | 1873 | 1877 |
| Sheet XV (Inset XXIa) | 1872 | 1877 |
| Sheet XVI | 1872 | 1877 |
| Sheet XVII | 1872 | 1877 |
| Sheet XVIII | 1871 | 1877 |
| Sheet XIX | 1873 | 1877 |
| Sheet XX | 1872 | 1877 |
| Sheet XXI | 1871 | 1877 |
| Sheet XXII | 1871 | 1876 |
| Sheet XXIII | 1871 | 1877 |
| Sheet XXIV | 1871 | 1877 |
| Sheet XXV | 1872 | 1877 |
| Sheet XXVI | 1872 | 1877 |
| Sheet XXVII | 1871 | 1876 |
| Sheet XXVIII | 1871 | 1877 |
| Sheet XXIX | 1871 | 1877 |
| Sheet XXX | 1874 | 1876 |
| Sheet XXXI | 1871 | 1877 |
| Sheet XXXIA (Inset XXVIA) | 1871 | 1877 |
| Sheet XXXII | 1872 | 1877 |
| Sheet XXXIII | 1871 | 1877 |
| Sheet XXXIV | 1871 | 1877 |
| Sheet XXXVI | 1871 | 1877 |
| Sheet XXXVII | 1871 | 1877 |
| Sheet XXXVIII | 1871 | 1877 |
| XXXIX (Inset XLIII) | 1871 | 1877 |
| Sheet XLI | 1871 | 1877 |
| Sheet XLII | 1871 | 1877 |
| Sheet XLIV (Inset XLIVA) | 1871 | 1877 |