The Barrier River is a river in the Mount Aspiring National Park in northern Southland, New Zealand. It is a tributary of the Pyke River, which it enters about 1 kilometre (0.6mi) south of Lake Wilmot.[1]
The Barrier River is fed by three glaciers and ice fields:
Demon Gap Icefall (North Branch)
Silver Glacier (via Silver Stream, between the branches)