Open Streetmap
Ordnance Survey
OS 6in
Black and white
Bing imagery
NASA night lights
LIDAR (Wales)
LIDAR (England)
Cadw: SMs
NRW: SSSIs
relief only
Geology - Bedrock
Geology - Superficial
Geology - Linear features
Cave Plans (experimental slippy map)
Cave Plans (! memory heavy !)
Sites
Names
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