Welcome to The Charles Close Society

Do you enjoy using or studying British and Irish Ordnance Survey maps old and new?

Are you interested in who produces them and how they do it?


The Society

Find out who we are, what are our aims and who Charles Close was.


This section contains detail on joining The Society and renewing your membership.

Latest News

Go here to find out what we’re up to, and when and where the next meetings are.

Online Resources

Our section for maps, covers and indexes, use as a reference for your research.


Here we show off our books and monographs we’ve written, and the online Bookshop

Archives & Collections

Our Archive is held in the Cambridge University Library, details are below.


Online Zoom Meetings are now occuring within The Society. Click here to see details of the next meet and recordings of previous meetings. This is an ideal way to stay in contact and share your interests in these unusual times, when normal meetings and visits are suspended.

The Society's Facebook Group is now active! Click here to visit and join. It contains many varied conversations about all manner of cartographic subjects related to the Ordnance Survey, its maps and the surveying behind them.

The online Collection of Map Covers is also live. Click here to explore. This is an ongoing project of collation, where Members have supplied variants of known Ordnance Survey map covers to make an online reference system. Its an ideal place to check an anomaly in your collection or a shop.


This comprehensive site search will not only look in pages in the site, but documents contained on those pages also, like PDFs. If it's on the site, you'll find it here.


Are you currently doing research into a mapping or surveying related subject? Do you have a question about a specific map, a symbol on a map recent or old? Or are you curious as to something related to the Ordnance Survey?

If so, maybe this independent Discussion Group set up by CCS Members can help? Click here to visit and ask away. With over 100 subscribers currently, we can probably answer that question and supply further detail, to help you on your way.