The
Buller River is in the
South Island of New Zealand. One of the country's longest rivers, it flows for from
Lake Rotoiti through the
Buller Gorge and into the
Tasman Sea near the town of
Westport. As Rotoiti itself is fed by the
Travers River it can be claimed that the Buller's source is at the headwaters of the Travers, on the northern slopes of Mount Travers in the
Saint Arnaud Range. The
Paparoa Range separates the Buller River from the
Grey River. A number of flora and fauna are found in the Buller watershed, many of these extending onto the slopes of the Paparoa Range.