PHYSICAL GEOGRAPHY. 
table lands from 100 to 250 feet bigh, covered with forest. Through 
this country a! 1 the rivers, except the Inangahua, flow diagonally, 
the latter having a northerly course. That portion of these plains 
winch is situated in the province of Nelson is bounded on its 
western side by a continuous mountain range, commencing on the 
northern bank ol the Grey near its mouth, and stretching in the 
same direction as the plains themselves towards the Buller, by 
which it is. broken through. This range, called by the natives 
aparoha, is composed on both its slopes of dome-shaped 
mountains, from 4,000 to 5,000 feet high, between which rises a 
rugged chain of serrated peaks, to the height of 5,500 feet, 
attaining in the Buckland peaks, eight miles south of the Buller’ 
its greatest elevation, which I estimate at from 6,500 to 6,800 
leet. The same mountain chain, but 1 ower and narrower, continues 
beyond the northern bank of the Buller, under the native name of 
Papahaua, its three highest points attaining an altitude of 3,500 
feet, and terminating near the Ngakuwaho stream. Through the 
northern part of the opening between the Lyell rang-e and 
Papahaua, several streams flow into the Buller, of w-hich the 
Orikaka is the largest. Prom the Paparoha chain also several 
rivers flow", amongst which the Ohikanui and the Ohikaiti, both 
having their sources in the Buckland peaks, are of considerable 
size. Although the greatest part of the Grey plains are covered 
with forest, they afford to the traveller, w r ho for many days has 
toiled through wooded mountain gorges, a splendid prospect, as he 
sees before him, bounded only by distant ranges, this fine tract of 
level country, destined at some not far oft' period to become the 
home of a large and busy population. 
1 have now to return to the sources of the Grey, which were 
discovered by Mr. Travers, and were afterwards more minutely 
examined by Messrs. Lewis and Maling, of the survey department. 
Mr. Lewis has drawn up a careful sketch map of this part of the 
country, through which I had not personally an opportunity of 
travelling, and has given such a description of it that I have been 
enabled to introduce into my topographical map the result of the 
explorations of these three gentlemen. 
Prom Mount Una stretches a spur in a south-south-west 
direction, on the north-western side of which lie the sources of the 
Maruia, the waters of which skirt the ridge of the Travers peak. 
This peak, which rises to a considerable altitude, is a western 
continuation of the same ridge, and slopes abruptly on its north¬ 
western side towards the Cannibal’s Gorge, through which the 
Maruia flow's in a westerly direction. The sources of the Grey 
lie on both sides of this ‘ridge. The eastern one, called by Mr. 
Travers the Boyle, takes its rise opposite to the sources of the 
Ann, one of the tributaries of the Waiau-ua, from which it is only 
separated by a low saddle about 400 feet high. The western one 
springs from some swampy ground on the western side of the 
