After we were rested and refreshed, and had sampled the mangoes that had fallen from a tree near the house, Mr. Aiken took us in his automobile up into the famous Iao Valley, at the mouth of which Wailuku is situated. It is a deep, striking chasm carved out of the mountain by the stream, rank with verdure of various kinds, and looked down upon by sharp peaks and ridges five or six thousand feet high. We soon reached the clear rapid, brawling stream, as bright as a Catskill mountain trout brook, and after a mile or two along its course we came to the end of the road, where we left the machine and took a trail that wound onward and upward over a slippery surface and through dripping bushes, for we here began to reach the skirts of the little showers that almost constantly career over and about the interior of these mountains. I neither saw nor heard a bird or other live thing. Guava apples lay on the ground all along the trail, and one could eat them and not make faces. Some of the sharp, knife-blade ridges that cut down toward us from the higher peaks were very startling, and so steep and high that they could be successfully scaled only by the aid of ropes and ladders. A more striking object-lesson in erosion by rain would be hard to find. There were no naked rocks; short, thick vegetation covered even the steepest slopes, and the vegetable acids which this generated, and the perpetual rains, weathered the mountains down. It soon became so wet that we stopped far short of the head of the valley, and turned back. I wished to look into the great, deep, green amphitheatre which seems to lie at the head, but had glimpses of it only from a distance. How many millenniums will it be, I said to myself, before erosion will have completed its work here, and these thin, high mountain-walls will be in ruins? Surely not many.
We returned to the hospitable home we had left, and passed the midday there. In the afternoon Mr. Aiken, guiding our eyes by the forms of trees that cut the horizon-line on the huge flank of Haleakala, pointed out the place of his own homestead, twenty or more miles away. From this point the great mountain appeared like a vast landscape tilted up at an easy angle against the horizon. One could hardly believe it was ten thousand feet high. The machine climbed easily more than half the distance to Mr. Aiken's plantation, which we reached in good time in the afternoon, and where we passed a very enjoyable night. It was a surprise to find swarms of mosquitoes at this altitude, so free from all mosquito-breeding waters. But the house was well protected against them. Mosquitoes, as well as flies and vermin, are not native to the island. They came in ships not very long ago, and are now very troublesome in certain parts. They came round the Horn. Mr. Aiken's house itself came round the Horn seventy or eighty years ago. It is a quaint, New England type of house, and has a very homelike look. In front of it, near the gate, stands a Japanese pine which is an object of veneration to all Japanese who chance to come that way. Often their eyes fill with tears on beholding it, so responsive are the little yellow men to associations of home.
In the morning Mr. Aiken drove us in a wagon to a place he has called "Idlewild," six miles farther up the great slope of the mountain. This slope of Haleakala is like a whole township, diversified with farms and woods, valleys and hills, resting on its elbows, so to speak, and looking out over the Pacific. We could look up to the cloud-line, about seven thousand feet above the sea, and occasionally get a glimpse of the long line of the summit through rifts in the clouds. At Idlewild our expedition, consisting of six mules and four people, was fitted out, and in the early afternoon we started on the trail up the mountain.
For several miles our way led over grassy slopes where cattle were grazing, and above which skylarks were singing. This was one of the happy surprises of the trip—the soaring and singing skylarks. All the way till we reached the cloud-belt, we had the larks pouring down their music from the sky above us. They seemed specially jubilant. It was May in England, too, and they sang as though the spirit of those downs and fells was stirring in their hearts, under alien skies, but true to the memories of home.
Before we reached the summit we came upon another introduction from overseas—the English pheasant. One started up from some bushes only a few yards from the trail, went booming away, and disappeared in a deep gully. A little later another sprang up, uttering a cackling cry as it flew away. We saw three altogether. The only home thing we saw was white clover in patches here and there, and it gave a most welcome touch to the unfamiliar scenes.
The cattle we passed on the way were suffering dreadfully from another introduction from the States—the Texas horn-fly, which had recently made its appearance. The poor beasts were driven half-crazy by it, as their sunken eyes and poor condition plainly showed.
The trail became rougher and steeper as we ascended, and the grass and trees gave place to low, scrubby bushes. We were half an hour or more in the cloud-belt, where the singing skylarks did not follow us. The clouds proved to be as loose of texture and as innocent as any summer fog that loiters in our valleys; but it was good to emerge into the sunshine again, and see the jagged line of the top sensibly nearer, and the canopy of clouds unroll itself beneath us. Far ahead of us and near the summit we saw a band of wild goats—twenty-two, I counted—leisurely grazing along, and now and then casting glances down upon us. They were domestic animals gone wild, and still retained their bizarre colors of white and black. One big black leader with a long beard looked down at us and shook his head threateningly. We reached the summit before the sun reached the horizon, and our eyes looked forth upon a strange world, indeed. On one hand the vast sea of cloud, into which the sun was about to drop, rolled away from the mountain below us, with its white surface and the irregular masses rising up from it, suggesting a sea of floating ice. Through rifts in it we caught occasional glimpses of the Pacific—blue, vague, mystical gulfs that seemed filled with something less substantial than water. On the other hand was the vast crater of Haleakala, two thousand feet deep, and many miles across, in which the shadows were deepening, and which looked like some burned-out Hades.
We stood or sat on the jagged edge and saw the day depart and the night come down, the glory of cloud and sea and sunset on the one hand, and on the other side the fearful chasm of the extinct volcano, red and black and barren, with the hosts of darkness gathering in it. It was like a seat between heaven and hell. Then later, when the Southern Cross came out and rose above the awful gulf, the scene was most impressive.
The crater of Haleakala is said to be the largest extinct crater in the world. To follow all its outlines would lead one a distance of more than twenty miles, but it is so irregular in shape that one gets only a poor conception of its extent in a view from its brink. At its widest part it cannot be more than four or five miles across. It was evidently formed by the whole top of the mountain having been blown out or else sunk down in recent geologic times. The fragments of jagged rock that thickly strew the surface all about the summit look as if they might have fallen there. The floor of the interior of the crater is thickly studded with many minor craters, through which the internal fires found vent after the crater as a whole had ceased to act. They are of the shape of huge haystacks, with a hole in the top, and looked soft and yielding in outline, and in color as though they were composed of soot and brick-dust. One of them is much larger than any of the rest. I thought it might be two hundred feet high. "It is eight hundred," said our guide; yet its summit was more than a thousand feet below the rim upon which we sat.
There has been no eruption in Haleakala since early in the last century. Over a large area of the interior the black lava, cracked and crumpled, meets the eye. Miles down one of its great arms toward the sea, we could see the green lines of vegetation, mostly rank ferns, advancing like an invading army. Far ahead were the skirmishers, loose bands of ferns, with individual plants here and there pushing on over the black, uneven surface toward the secondary craters of the centre. Vegetation was also climbing down the ragged sides of the crater, dropping from rock to rock like an invading host. The ferns, those pioneers of the vegetable world, appear to come first. Their giant progenitors subdued the rocks and made the soil in Carboniferous times, and prepared the way for higher vegetable forms, and now these striplings take up the same task in this primitive world of the crater of Haleakala. Their task is a long and arduous one, much more so than in those parts of the island where the rainfall is more copious; but give them time enough, and the barren lava will all be clothed with verdure. When decomposed and ripened by time, it makes a red, heavy soil that supports many kinds of plants and trees.