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Base map:
Ordnance Survey
Satellite
Ordnance Survey (1937-1961)
Ordnance Survey (1920's)
Show vice-county boundaries
Show graticule
Use 5km and 2km grid squares
Rollup results (vice-counties only)
Show superficial deposit overlay
Show bedrock geology overlay
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c
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z
: zoom to the selection
l
: get current location