Beili-cadarn (Unclassified).
Grid Reference: SN 52301 48344. Parish: Llanwnnen, Cardiganshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Cae cadarn (Field).
Grid Reference: SH 59227 23025. Parish: Llanenddwyn, Merionethshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae cadarn (Field).
Grid Reference: SH 59237 23106. Parish: Llanenddwyn, Merionethshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae pwll cadarn (Field).
Grid Reference: SH 89560 77196. Parish: Llandrillo-yn-Rhôs, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Castell cadarn ty (Field).
Grid Reference: SS 83223 95210. Parish: Glyncorrwg, Glamorgan
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Castell-cadarn (Settlement).
Grid Reference: SN 48852 04448. Parish: Llanelli Rural, Carmarthenshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Coed cae Cadarn (Field).
Grid Reference: ST 24538 92122. Parish: Risca, Monmouthshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Croes Cadarn (Unclassified).
Grid Reference: ST 20924 82676. Parish: Llanedeyrn, Glamorgan
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Great Cwmcadarn (Field).
Grid Reference: SO 18869 35644. Parish: Tregoyd and Felindre, Brecknockshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Great Cwmcadarn (Field).
Grid Reference: SO 18625 38039. Parish: Tregoyd and Felindre, Brecknockshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin