[Afon] Celyn (Topographic feature).
Grid Reference: SH 83878 42317. Parish: Llanycil, Merionethshire
When recorded: 1699. Primary Source: Parochialia 2. Secondary Source: none

Afon Celynog (Unclassified).
Grid Reference: SH 80237 20153. Parish: Brithdir and Islawr-dref, Merionethshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Allotment Coed y Celyn (Field).
Grid Reference: SH 80546 54880. Parish: Llanrwst Rural, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Allotment on Coed y Celyn (Field).
Grid Reference: SH 79861 55088. Parish: Llanrwst Rural, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Allotment on Coed y Celyn (Field).
Grid Reference: SH 80158 54759. Parish: Llanrwst Rural, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Allotment on Coed y Celyn between Turnpike road and river (Field).
Grid Reference: SH 80743 53678. Parish: Llanrwst Rural, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Allotment on Coedy Celyn (Field).
Grid Reference: SH 81077 54615. Parish: Llanrwst Rural, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Allotment on Gallt y Celyn (Field).
Grid Reference: SH 80554 54593. Parish: Llanrwst Rural, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Allotment on Gallt y Celyn (Field).
Grid Reference: SH 81191 54213. Parish: Llanrwst Rural, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Allt Llwyn-celyn (Topographic feature).
Grid Reference: SN 50677 30833. Parish: Llanfihangel Rhos-y-corn, Carmarthenshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website