represents an operator form of GeoWithinQ that can be applied to a location.
Details and Options
In GeoWithinQ[reg,loc], reg can be specified as either an Entity object or an extended GeoGraphics primitive. The location loc can additionally be specified as a GeoPosition or related point-like location object.
GeoWithinQ accepts lists in both arguments, effectively calling Outer on the input lists.
With the option setting "FullyContained"->True, GeoWithinQ[reg,loc] will return True only if loc is completely contained in reg.