5 Cyfer main (Field).
Grid Reference: ST 14245 88465. Parish: Eglwysilan, Glamorgan
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

A field part of Caemain (Field).
Grid Reference: SN 66341 12450. Parish: Betws, Carmarthenshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Abbey (Remains of) (Unclassified).
Grid Reference: SJ 05984 66577. Parish: Denbigh, Denbighshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Aber mainch (Field).
Grid Reference: SH 88173 61490. Parish: Gwytherin, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Aberedw Castle (Remains of) (Unclassified).
Grid Reference: SO 07456 47389. Parish: Aberedw, Radnorshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Aber-main (Unclassified).
Grid Reference: SO 13360 67421. Parish: Llanddewi Ystradenni, Radnorshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Aber-main Wood (Unclassified).
Grid Reference: SO 13209 67408. Parish: Llanddewi Ystradenni, Radnorshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Alisby's Castle (Remains of) (Unclassified).
Grid Reference: SO 21820 18266. Parish: Crickhowell, Brecknockshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Allotment on Pant Cwm Main (Field).
Grid Reference: SJ 01077 12641. Parish: Llangadfan, Montgomeryshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Allt main (Field).
Grid Reference: SN 11083 22216. Parish: Llandissilio West, Pembrokeshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin