A running survey is a rough survey made by a vessel while coasting. Bearings to landmarks are taken at intervals as the vessel sails offshore, and are used to fix features on the coast and further inland. Intervening coastal detail is sketched in.[1]
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Ministry of Defence (1987), Admiralty manual of navigation. Volume 1. General navigation, Coastal Navigation and Pilotage, HMSO, p. 527, ISBN0-11-772880-2
^Ritchie, G. S. (April 1970), "Developments in British Hydrography Since the Days of Captain Cook", Royal Society for the Encouragement of Arts, Manufactures and Commerce, Journal, 118 (5165): 270–283