[https://jsonhero.io/j/buvcgpLEU8Dl?path=regCF_county_filters FILTERROOT] [https://jsonhero.io/j/RVsn7JgZWGfl?path=regCF_county_filters INVFILTER]
Mass county map geojson official highcharts collection.
[https://jsonhero.io/j/rmRy2sPyWJs1 MASSMAPJSON]
[https://raw.githubusercontent.com/highcharts/map-collection-dist/master/countries/us/us-ma-all.geo.json MASSRAW]
