Llanarth may refer to:
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Llanarth, Ceredigion
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Llanarth, Monmouthshire
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Llanarth, Queensland
Llanarth is a rural locality in the Charters Towers Region, Queensland, Australia. In the , Llanarth had a population of 48 people.
Heritage listings
Llanarth has a number of heritage-listed sites, including:
* St Annes Road: Suttor River Cau ...
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Llanarth, New South Wales
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Llanarth (house), New South Wales
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