The following map shows the positions of Extant City of London coal duty boundary marks, except No.33. Click on an individual map marker to see details of the Post (mark). It is provided to help plan certain walks.
 
Information on Coal Duty Posts has been sourced from www.coaldutyposts.org.uk, copyright © 2012 Martin Nail, under the Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales License. Coal Duty Posts information on this webpage is similarly licensed under Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales License. The map information is not covered by this License, but continues to be Crown Copyright and is subject to the Terms of Use shown at the bottom of the map.