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Mapping Data

This website contains mapping data licensed from the Ordnance Survey with the permission of the Controller of Her Majesty’s Stationery Office © Crown Copyright 2011. All rights reserved. Licence Number 100005988


Freelists is a group messaging service that DVO members can use to send email messages to the whole of the DVO membership who have opted in to use the service. It replaces Yahoo Groups which is no longer operational.

If you want to make use of the service to send and receive messages then you need to join the DVO list by sending an email to with ‘subscribe’ in the Subject field OR by visiting the DVO list page at https://www.freelists.org/list/dvo.

To send a message to the DVO mailing list, simply send an email to .