The
Ordnance Survey
The Ordnance Survey (OS) was originally
established in Britain in 1791, and in 1824 the Survey established its
Irish headquarters in Dublin, in order to undertake the mapping and measurement
of Irish townlands. The maps were drawn on a scale of 6 inches to one
mile and published between 1833 and 1846. They were later revised on a
county-by-county basis. 
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Clare Historical Maps
Clare Historical Maps
mapping monuments and places in County Clare
1842
Ordnance Survey maps - with Towns of Clare selected
1842
Ordnance Survey maps - with Townlands of Clare selected
1842
Ordnance Survey maps - with Monuments of Clare selected
1842
Ordnance Survey six-inch overview map - with Towns of Clare selected
About our
1842 Ordnance Survey Historical Map Digitisation Project:
In July 2004 Clare County Library decided
to build an Internet Geographical Information System for the users of
Clare County Library based on the 1842 Ordnance Survey 6 inch maps of
County Clare, make it available through the library’s website at
http://www.clarelibrary.ie/, and integrate it with other online resources
of Clare County Library.
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info >>
Notes
The
Ordnance Survey Letters 1839
External Link:
Ordnance
Survey Ireland Maps (opens in new window)