GeoPolygon
GeoPolygon[{loc1,…,locn}] is a GeoGraphics primitive that represents a filled polygon whose boundary is formed by geodesic segments between locations loci and loci+1.
GeoPolygon[{loc1,…,locn}->{{q1,…,qm},…}] represents a geo polygon with holes {q1,…,qm}, ….
GeoPolygon[{poly1,poly2,…}] represents a collection of polygons polyi.
GeoPolygon[{poly1,poly2,…},sideness] specifies which of the two sides of each boundary polyi is in the interior of the geo polygon.
GeoPolygon[polys,sideness,pathtype] represents a geo polygon whose boundary is formed by geo paths of type pathtype.
Please visit the official Wolfram Language Reference for more details and examples on core symbols.