Not defined in Darwin Core. Altitude value of the coordinate. The properties CoordinateX, CoordinateY, CoordinateZ, CoordinateM and CoordinateSystemWkt defines where the species observation was made.

public string CoordinateZ { get; set; }

Public Property CoordinateZ As String
	Get
	Set

public:
property String^ CoordinateZ {
	String^ get ();
	void set (String^ value);
}

member CoordinateZ : string with get, set