Ownership and size
Administratively it is part of Thurrock unitary authority; the border with its ceremonial county namely the administrative county of Essex runs between it and Canvey Island. Smaller than normal markings for an area of saltings (traditional, open air, sea salt extraction through drying) appear in the Ordnance Survey map of 1919, which confirms its acreage.
Consisting of permanent marshland with six small internal creeks draining to the north; Lower Horse is part of the group of islands (five of which later re-clustered to form Canvey Island), that broke away from the English coastline in the medieval period.
- OS six-inch map of 1898 Ordnance Survey Essex Sheet n LXXXIX.12 revised 1919, published 1922.
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|Next island upstream||River Thames||Next island downstream|
Note: Frog Island and Isle of Dogs are peninsulas
|Lower Horse||Canvey Island|