Afr ogof House garden and field (Field).
Grid Reference: SH 46897 66135. Parish: Llanidan, Anglesey
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Allt Ogofau (Topographic feature).
Grid Reference: SN 66194 40026. Parish: Cynwyl Gaeo, Carmarthenshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Allt r' ogo fawr (Field).
Grid Reference: SH 32068 24554. Parish: Llanengan, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Allt yr Ogof (Topographic feature).
Grid Reference: SN 35183 37393. Parish: Llangeler, Carmarthenshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Bau ogof -eiral (Unclassified).
Grid Reference: SH 15583 23919. Parish: ,
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Bay Ogof Hên (Topographic feature).
Grid Reference: SM 70483 25209. Parish: ,
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Brynogof llwyd house garden buildings etc (Field).
Grid Reference: SH 25898 39407. Parish: Tudweiliog, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Bryn-yr-ogof (Unclassified).
Grid Reference: SJ 19500 56601. Parish: Llanarmon-yn-Iâl, Denbighshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Buarth Cerrig Ogof (Field).
Grid Reference: SH 83368 57215. Parish: Llanrwst Rural, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae Cerrig Ogof (Field).
Grid Reference: SH 83195 57274. Parish: Llanrwst Rural, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin