<xs:element name="Watersheds"> <xs:annotation> <xs:documentation>The collection of watershed regions for the surface.</xs:documentation> </xs:annotation> <xs:complexType> <xs:sequence> <xs:element ref="Watershed" maxOccurs="unbounded" /> <xs:element ref="Feature" minOccurs="0" maxOccurs="unbounded" /> </xs:sequence> </xs:complexType> </xs:element>