Blackhawk is a locality and its consensus geometry is derived from quattroshapes.
{"gn:population":9354,"geom:latitude":37.81598,"qs:loc_alt":"Blackhawk CDP","wof:name":"Blackhawk","counts:names_total":2,"mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102086225,"locality_id":85925167,"region_id":85688637}],"wof:geom_alt":["quattroshapes_pg"],"gn:elevation":304,"mz:min_zoom":11,"lbl:latitude":37.810679,"lbl:min_zoom":11,"geom:area":0.00154,"qs:id":0,"gn:latitude":37.82076,"counts:concordances_total":6,"qs:adm0":"United States","geom:type":"Polygon","wof:lastmodified":1722115905,"qs:a1":"*California","wof:belongsto":[102191575,85633793,102086225,85688637],"mps:latitude":37.810679,"qs:a0":"United States","wof:repo":"whosonfirst-data-admin-us","wof:lang":["eng"],"qs:loc":"Blackhawk","wof:country":"US","counts:names_preferred":1,"geom:area_square_m":1.5043028232928E7,"counts:names_variant":1,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","geom:bbox":"-121.951982,37.798115,-121.871855,37.839648","qs:loc_lc":"0606928","name:eng_x_preferred":["Blackhawk"],"src:lbl_centroid":"mapshaper","wof:superseded_by":[],"wof:geomhash":"1d2f59802ac68f19c9e880690f91a9a0","name:und_x_variant":["Blackhawk-Camino Tassajara"],"qs:pop":0,"wof:placetype_id":102312317,"qs:la_lc":"*","qs:level":"locality","mz:is_ceased":0,"lbl:max_zoom":15,"src:population":"uscensus","src:population_date":"2022","wof:placetype":"locality","gn:longitude":-121.90774,"mz:is_deprecated":0,"qs:type":"G4210","geom:longitude":-121.907142,"wof:population":9595,"wof:id":85925167,"qs:source":"AUS Census","wof:concordances":{"fct:id":"08b039f2-8f76-11e1-848f-cfd5bf3ef515","fips:code":"0606928","gn:id":5329204,"gp:id":23417120,"qs_pg:id":24722,"uscensus:geoid":"0606928"},"qs:a1r":"*","src:geom":"quattroshapes","src:geom_alt":["quattroshapes_pg"],"wof:tags":[],"wof:population_rank":5,"counts:names_languages":2,"uscensus:population":9595,"mps:longitude":-121.909861,"qs:a1_lc":"06","wof:supersedes":[],"lbl:longitude":-121.909861,"uscensus:population_date":"2022","wof:parent_id":102086225,"wof:placetype_names":["locality"],"mz:hierarchy_label":1,"edtf:cessation":"uuuu"}