Afon Llaethog (Unclassified).
Grid Reference: SH 91470 50518. Parish: Pentrefoelas, Denbighshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Afon Llaethog (Unclassified).
Grid Reference: SH 91445 52495. Parish: Pentrefoelas, Denbighshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Allt Cwm-llaethliw (Unclassified).
Grid Reference: SN 47584 58367. Parish: Ciliau Aeron, Cardiganshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Allt Fawr Esgair-llaethdy (Topographic feature).
Grid Reference: SN 78600 29964. Parish: Myddfai, Carmarthenshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

BACHELLAETH (Unclassified).
Grid Reference: SH 31353 34404. Parish: Buan, Caernarfonshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Blaen-llaethdy (Unclassified).
Grid Reference: SN 10024 24447. Parish: Llanycefn, Pembrokeshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Bryn Bachellaeth (Field).
Grid Reference: SH 30279 35178. Parish: Buan, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Bryn-llaeth (Unclassified).
Grid Reference: SH 37884 37565. Parish: Llannor, Caernarfonshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Brynllaeth House offices yard &c (Field).
Grid Reference: SH 37830 37560. Parish: Llannor, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Bryn-llaethog (Settlement).
Grid Reference: SH 91480 50380. Parish: Cerrigydrudion, Denbighshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website