Afon Clyn Maen (Unclassified).
Grid Reference: SN 14380 34490. Parish: Meline, Pembrokeshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Afon Cwm-penmaen (Unclassified).
Grid Reference: SH 73377 49228. Parish: Dolwyddelan, Caernarfonshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Allt y maen (Field).
Grid Reference: SN 41999 24356. Parish: Abergwili, Carmarthenshire
When recorded: Circa 1840. Primary Source: none. Secondary Source: Cynefin

Allt-y-maen (Unclassified).
Grid Reference: SN 40394 49878. Parish: Llandysiliogogo, Cardiganshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Banc Cil-maen-llŵyd (Topographic feature).
Grid Reference: SN 20245 48282. Parish: Cardigan, Cardiganshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Banc Maenarthur (Field).
Grid Reference: SN 72803 72618. Parish: Llanafan, Cardiganshire
When recorded: Circa 1840. Primary Source: none. Secondary Source: Cynefin

Beudy Maen-grugog (Unclassified).
Grid Reference: SH 82219 39336. Parish: Llanycil, Merionethshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Blaen-maen (Settlement).
Grid Reference: SN 44116 39312. Parish: Llanfihangel-ar-arth, Carmarthenshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Blaen-maenog (Settlement).
Grid Reference: SN 36015 35145. Parish: Llangeler, Carmarthenshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Blaen-nant-y-maen (Unclassified).
Grid Reference: SN 88128 35644. Parish: Llandeilo'r-Fan, Brecknockshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website