- contributors_gb_html: '<strong>Y Deyrnas Gyfunol</strong>: Cynhwysir data
- a thestun gan yr Arolwg Ordnans; hawlfraint y Goron a hawl cronfa ddata
- 2010-19.'
+ contributors_at_cc_by: CC BY
+ contributors_au_australia: Awstralia
+ contributors_au_geoscape_australia: Geoscape Australia
+ contributors_ca_canada: Canada
+ contributors_fi_finland: Y Ffindir
+ contributors_fi_nlsfi_license: Trwydded NLSFI
+ contributors_fr_france: Ffrainc
+ contributors_nl_netherlands: Iseldiroedd
+ contributors_nz_new_zealand: Seland Newydd
+ contributors_si_slovenia: Slofenia
+ contributors_es_spain: Sbaen
+ contributors_es_ign: IGN
+ contributors_es_cc_by: CC BY 4.0
+ contributors_za_south_africa: De Affrica
+ contributors_gb_united_kingdom: Deyrnas Unedig
+ contributors_2_contributors_page: Tudalen gyfranwyr