Groton is a locality and its consensus geometry is derived from whosonfirst.
{"wof:statistical_gore":1,"mz:is_ceased":0,"geom:latitude":42.584556,"wof:name":"Groton","counts:names_total":1,"wof:placetype":"locality","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102082355,"localadmin_id":404523229,"locality_id":1729445567,"region_id":85688543}],"mz:is_deprecated":0,"mz:min_zoom":30,"lbl:latitude":42.574676,"geom:area":0.013577,"geom:longitude":-76.359671,"wof:id":1729445567,"geom:type":"Polygon","wof:lastmodified":1613765288,"wof:belongsto":[102191575,85633793,102082355,404523229,85688543],"mps:latitude":42.574676,"wof:repo":"whosonfirst-data-admin-us","src:geom":"whosonfirst","wof:country":"US","counts:names_preferred":1,"geom:area_square_m":1.2360820119391E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","src:geom_via":"uscensus","counts:names_languages":1,"geom:bbox":"-76.458405,42.545917,-76.261481,42.623588","name:eng_x_preferred":["Groton"],"mps:longitude":-76.402304,"src:lbl_centroid":"mapshaper","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-76.402304,"wof:geomhash":"a98b5b79b7c82a24bbdbfe7634b63255","wof:parent_id":404523229,"wof:placetype_names":["locality"],"mz:hierarchy_label":1,"wof:placetype_id":102312317,"edtf:cessation":"uuuu"}