Ordnance Survey, 1:100,000 index maps, England and Wales, 1966-1972
This set of maps at a scale of 1:100,000 were intended as county-based indexes to larger-scale County Series and National Grid maps. The County Series sheet lines (relating to the Six-Inch and 25 inch to the mile maps of England and Wales published before the Second World War) are shown as a red overprint, with National Grid sheet lines (relating to National Grid maps published after the Second World War), shown in black. The underlying topography is based on the One-Inch Seventh Series.
These sheet lines to County Series and National Grid maps are also viewable in our Records viewer.
- View the County Index maps with a graphic index.
- View all the index maps with a graphic index.
| Sheet Number and Name | Date of Publication | Indexes and boundaries shown |
|---|---|---|
| Anglesey and Caernarvonshire | Published: 1971 | 6 inch, 25 inch, National Grid |
| Bedfordshire | Published: 1967 | 6 inch, 25 inch, National Grid |
| Berkshire | Published: 1967 | 6 inch, 25 inch, National Grid |
| Brecknockshire | Published: 1971 | 6 inch, 25 inch, National Grid |
| Buckinghamshire | Published: 1968 | 6 inch, 25 inch, National Grid |
| Cambridgshire and Isle of Ely | Published: 1967 | 6 inch, 25 inch, National Grid |
| Cardiganshire | Published: 1971 | 6 inch, 25 inch, National Grid |
| Carmarthenshire | Published: 1971 | 6 inch, 25 inch, National Grid |
| Cheshire | Published: 1971 | 6 inch, 25 inch, National Grid |
| Cornwall | Published: 1966 | 6 inch, 25 inch, National Grid |
| Cumberland | Published: 1968 | 6 inch, 25 inch, National Grid |
| Denbighshire and Flintshire | Published: 1972 | 6 inch, 25 inch, National Grid |
| Derbyshire | Published: 1968 | 6 inch, 25 inch, National Grid |
| Devonshire (north part) | Published: 1966 | 6 inch, 25 inch, National Grid |
| Devonshire (south part) | Published: 1967 | 6 inch, 25 inch, National Grid |
| Dorset | Published: 1967 | 6 inch, 25 inch, National Grid |
| Durham | Published: 1968 | 6 inch, 25 inch, National Grid |
| Essex | Published: 1968 | 6 inch, 25 inch, National Grid |
| Glamorgan | Published: 1970 | 6 inch, 25 inch, National Grid |
| Gloucestershire | Published: 1967 | 6 inch, 25 inch, National Grid |
| Hampshire with the Isle of Wight | Published: 1967 | 6 inch, 25 inch, National Grid |
| Herefordshire | Published: 1967 | 6 inch, 25 inch, National Grid |
| Hertfordshire | Published: 1968 | 6 inch, 25 inch, National Grid |
| Huntingdon and Peterborough | Published: 1967 | 6 inch, 25 inch, National Grid |
| Kent | Published: 1967 | 6 inch, 25 inch, National Grid |
| Lancashire | Published: 1969 | 6 inch, 25 inch, National Grid |
| Leicestershire | Published: 1967 | 6 inch, 25 inch, National Grid |
| Lincolnshire (north part) | Published: 1969 | 6 inch, 25 inch, National Grid |
| Lincolnshire (south part) | Published: 1969 | 6 inch, 25 inch, National Grid |
| Merionethshire | Published: 1971 | 6 inch, 25 inch, National Grid |
| Monmouthshire | Published: 1970 | 6 inch, 25 inch, National Grid |
| Montgomeryshire and Radnorshire | Published: 1971 | 6 inch, 25 inch, National Grid |
| Norfolk | Published: 1968 | 6 inch, 25 inch, National Grid |
| Northamptonshire | Published: 1968 | 6 inch, 25 inch, National Grid |
| Northumberland | Published: 1968 | 6 inch, 25 inch, National Grid |
| Nottinghamshire | Published: 1968 | 6 inch, 25 inch, National Grid |
| Oxfordshire | Published: 1968 | 6 inch, 25 inch, National Grid |
| Pembrokeshire | Published: 1971 | 6 inch, 25 inch, National Grid |
| Rutland | Published: 1966 | 6 inch, 25 inch, National Grid |
| Shropshire | Published: 1968 | 6 inch, 25 inch, National Grid |
| Somerset | Published: 1966 | 6 inch, 25 inch, National Grid |
| Staffordshire | Published: 1966 | 6 inch, 25 inch, National Grid |
| Suffolk | Published: 1968 | 6 inch, 25 inch, National Grid |
| Surrey | Published: 1968 | 6 inch, 25 inch, National Grid |
| Sussex | Published: 1968 | 6 inch, 25 inch, National Grid |
| Warwickshire | Published: 1967 | 6 inch, 25 inch, National Grid |
| Westmorland | Published: 1967 | 6 inch, 25 inch, National Grid |
| Wiltshire | Published: 1967 | 6 inch, 25 inch, National Grid |
| Worcestershire | Published: 1967 | 6 inch, 25 inch, National Grid |
| Yorkshire North Riding (west part) | Published: 1968 | 6 inch, 25 inch, National Grid |
| Yorkshire North Riding (east part) | Published: 1969 | 6 inch, 25 inch, National Grid |
| Yorkshire West Riding (south part) | Published: 1969 | 6 inch, 25 inch, National Grid |
| Yorkshire West Riding (north part) | Published: 1969 | 6 inch, 25 inch, National Grid |
| Yorkshire East Riding | Published: 1968 | 6 inch, 25 inch, National Grid |