#312 - River Thames Mapathon

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Please follow the below steps to map a beach:

Choose a tile to map and start editing using ID editor In OpenStreetMap, go to the Background settings tab, and change this from 'Bing areal imagery' to 'OS OpenData StreetView' The base map should now be an Ordnance survey map, where the Thames beaches are visible as yellow areas in the river.

Carefully trace the outline of the beach as an area, ensuring this closely matches the river bank outline. If the beach is below the mean high water level (marked on at various points as 'MHW') Use the following tags to identify what the area is:

tidal=yes source=OS_OpenData_StreetView surface= sand/mud/gravel

If the beach has a name, you can add this using the tag: name=

If you think the area is a wetland, you can use the tags on this page to add more information: https://wiki.openstreetmap.org/wiki/Tag:natural%3Dwetland

If the beach is above the mean high water (this means the beach is generally there even at high tide), use the following tags to identify what the area is:

natural = beach source=OS_OpenData_StreetView surface= sand/mud/gravel

For expert mappers, you might also like to map the following:

Correct the outline of the River Thames if needed so that it matches the mean high water line Piers Trees


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#hotosm-task-312

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