I had a closer look at an aerial view of Spurn's 'neck' - the area where the sea defence blocks are. I compared it with the same section of the 1852 map* and tweaked the two maps to the same scale. The image shows the maps overlaid. See the enlarged version.
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I'm thinking of the static blocks of stone - meant to protect against the dynamic forces of wind, weather and waves - and the shifting landscape. Taking these aspects into account I'd like to mark a stretch of the defence blocks which by chance outline some of the 1852 Spurn. I will need to have another look at the real Spurn - the tides in this area and the actual blocks.
*with thanks to the Dept. of Geography, University of Hull
*with thanks to the Dept. of Geography, University of Hull