Niagara Peninsula Conservation Authority
The authority is responsible for the management and protection of the watershed in the Niagara Peninsula , which includes the Niagara River , Welland River , and other bodies of water flowing into Lake Erie and Lake Ontario . 
<triplet> Niagara River <subj> Lake Erie <obj> lakes on river <subj> Lake Ontario <obj> lakes on river <triplet> Welland River <subj> Niagara River <obj> mouth of the watercourse <triplet> Lake Erie <subj> Niagara River <obj> lake outflow