Greymouth is a localadmin and its consensus geometry is derived from whosonfirst.
{"name:ell_x_preferred":["Γκρέιμουθ"],"name:heb_x_preferred":["גריימאוט'"],"geom:latitude":-42.48824,"name:ben_x_preferred":["গ্রেমাউথ"],"wof:coterminous":[101915333],"wof:name":"Greymouth","counts:names_total":8,"wof:lang_x_spoken":["eng","mri"],"mz:is_current":1,"name:vie_x_preferred":["Greymouth"],"wof:hierarchy":[{"continent_id":102191583,"country_id":85633345,"county_id":102079361,"localadmin_id":1729238491,"region_id":85687165}],"label:fra_x_preferred_placetype":["autorité territoriale"],"mz:min_zoom":9,"lbl:latitude":-42.468796,"lbl:min_zoom":11,"geom:area":0.048426,"name:hun_x_preferred":["Greymouth"],"label:eng_x_preferred_placetype":["territorial authority district"],"geom:type":"MultiPolygon","wof:lastmodified":1696022882,"wof:belongsto":[102191583,85633345,85687165,102079361],"mps:latitude":-42.468796,"name:ind_x_preferred":["Greymouth"],"wof:repo":"whosonfirst-data-admin-nz","wof:country":"NZ","counts:names_preferred":8,"geom:area_square_m":4.41564198315595E8,"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"NZ","name:ukr_x_preferred":["Греймут"],"geom:bbox":"171.092617,-42.730128,171.426092,-42.312388","name:eng_x_preferred":["Greymouth"],"src:lbl_centroid":"mapshaper","wof:superseded_by":[],"wof:geomhash":"e00ae0ccc94f55caa9841069876040db","wof:placetype_id":404221409,"mz:is_ceased":0,"wof:created":1600724629,"lbl:max_zoom":13,"wof:placetype":"localadmin","mz:is_deprecated":0,"geom:longitude":171.2549,"wof:id":1729238491,"src:geom":"whosonfirst","wof:tags":[],"src:geom_via":"nz-linz","counts:names_languages":8,"wof:lang_x_official":["eng","mri"],"mps:longitude":171.252442,"wof:supersedes":[],"lbl:longitude":171.252442,"wof:parent_id":102079361,"wof:placetype_names":["localadmin"],"mz:hierarchy_label":1,"edtf:cessation":"uuuu"}