| Date Note | Date of base map; given span date of similar maps in this series |
| Description | Geological colouring, with copious notes and written sections mainly about collieries & quarries with references to their owners, by George Bellas Greenough', [?1829-1840] on base 'A New Map of the County of Warwick divided into Hundreds' (2nd ed), published by Charles Smith, 1808. Greenough no.292. Scale-1:100,000. Dissected on cloth in case, 58 x 63cm. |
| Administrative History | There are no bibliographic sources given on the map, but the multiple references to the owners of quarries and collieries may indicate that they were the source of the information.
The map may have been used as part of the research for the second edition of Greenough's 'Geological Map of England and Wales' (1840). |