Cefn enys isa (Field).
Grid Reference: SH 59467 05809. Parish: Llanegryn, Merionethshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cefnen (Unclassified).
Grid Reference: SH 87839 76109. Parish: Llanelian-yn-Rhôs, Denbighshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Cefnen (Unclassified).
Grid Reference: SH 87505 58416. Parish: Gwytherin, Denbighshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Cefnen (Field).
Grid Reference: SH 79950 50140. Parish: Penmachno, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cefnen draw (Field).
Grid Reference: SJ 08039 52629. Parish: Derwen, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cefnen Goch (Field).
Grid Reference: SH 78552 50281. Parish: Penmachno, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cefnen Goch (Field).
Grid Reference: SH 78648 50449. Parish: Penmachno, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cefnen Gorse (Unclassified).
Grid Reference: SH 88147 76102. Parish: Llanelian-yn-Rhôs, Denbighshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Cefnen isa (Field).
Grid Reference: SJ 06434 50589. Parish: Derwen, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cefnen rug (Field).
Grid Reference: SJ 04133 53333. Parish: Clocaenog, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin