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
More info >>
The Clare GMaps are based on the Google
Map system, allowing Google Maps and satellite views to be overlaid with
historical OS maps of Clare from 1842.
Mapbrowser works with the
majority of browsers including Firefox, Internet Explorer, Google Chrome,
Safari, and Opera and does not require the installation of further plugins.
It does require Adobe Flash
Tip: click on the slider to zoom in and out, and select the pan cursor
button to move
around the map.
Ordnance Survey maps - with Towns of Clare selected
Ordnance Survey maps - with Townlands of Clare selected
Ordnance Survey maps - with Monuments of Clare selected
Ordnance Survey six-inch overview map - with Towns of Clare selected
MapBrowser maps page
Our online SVG format maps will currently only
work with the Internet Explorer browser (Version 5.5+) on Windows 98-XP
PCs. You will need to download and install a Scalable Vector Graphics
(SVG) plugin for your Web browser before you can access our maps. Note:
Security setting in Internet Explorer: If you are having a problem with
accessing the OS maps open Internet Explorer and go to Tools, Internet
Options, Advanced. Go down to the end (to the 'Security' options) and
make sure that the 'Allow active content to run in files on My Computer'
is NOT checked (i.e. that the second option in 'Security' is left blank).
info on plugins >> When you have the SVG plugin installed, and
do not wish to avail of our 'semi-offline' solution, or the new Mapbrowser
click here for the
online maps in SVG format >>
The maps make use of thousands of tiled images whose file sizes are necessarily
quite large. As some windows may require four such tiles to be downloaded
at any one time, you will need to have broadband access to the Internet
for ease of viewing. If you do not have broadband access, please click
here for information on obtaining a CD of the tiled images which can
be used in conjunction with the SVG version of our online Ordnance Survey
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.