Ordnance Survey One-Inch First Edition Old Map of Carmarthenshire, Glamorganshire, Brecknockshire: Old Series map of OS Old Series Map Sheet 41 (Carmarthenshire / Tywi Valley inferred).
Please note that the modern reference map on the split screen is intended as a guide only.
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This sheet represents a landscape, characterised by .
The primary archaeological theme is .
The terrain is interpreted using .
Sheet 41 / N° XLI is visible. Large county lettering reads CAERMARTHEN SHIRE. The sheet is interpreted as central/eastern Carmarthenshire with adjoining upland border areas. Graticule labels are faint or unreadable, so bounds are reconstructed from neighbouring Sheet 40, sheet geometry and identifiable geography.
Sheet 41 shows a mixed area of . The map is useful for studying early 19th Century historic settlement patterns, Roman road alignments, early archaeological site indentification, how roads, old tracks, lanes and paths, villages, waterways and field systems related to the wider nineteenth-century landscape.