Scheduled Maintenance
Please be advised that this website will undergo scheduled maintenance on the following dates: •
Tuesday 3rd December 11:00-15:00
During these times, some services may be temporarily unavailable. We apologise for any inconvenience this may cause.
MEASURED MILE MARKER
A pair of landmark posts intended to be viewed in transit to define one end of an accurately measured mile (on a known bearing) used to verify the performance of ships following construction or refit.
Admiralty Distance Pole (Non-Preferred) | Distance Pole (Non-Preferred)