Page:Picturesque New Zealand, 1913.djvu/337

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THE SOUTHERN ALPS
217

where the coach road turned abruptly toward Aorangi's peaks, I saw a desolate region. Here the tussock was less prolific than at Tekapo, and the glacial débris on which it struggled for existence was very extensive. Along the shore large dark boulders were strewn in profusion, and as we neared the hotel beside the Pukaki River, the lake's outlet, outcroppings of broken drift, which here formed hills, were prominent.

Forty miles from Pukaki's hotel is the Hermitage. Of that distance about one third of the road closely follows the western shore of the lake, which is about sixteen hundred feet above sea-level; thereafter, until near the Hermitage, the Tasman River, which flows into the lake, is followed. The Tasman is a river with many divisions, and it receives the waters of numerous glacial streams, including the Hooker River and the discharges from the great Tasman Glacier, its source. For the greater part of its length it flows through gravel beds, spreading about at will over a wide flat.

The streams flowing into the Tasman are an interesting study. Some of them are mainly conduits for rain, and in the summer these become dry within a few days after a heavy precipitation. I have seen such water-courses clear within three or four days after they were heavily charged with silt.

Down the Tasman there frequently sweeps a terrific Alpine wind. Against its blasts, blown as if through a funnel, it is impossible for pedestrians to keep a straight course, and at times, as I learned by experience, they