"At its bottom," he says, "a stream of water could be seen winding its way along it, the great depth causing it to appear like a mere riband. As far as time would permit an examination, for a depth of about three hundred feet—I could descend no further, on account of the wall becoming vertical—the formation appeared to be sandstone, horizontally stratified with drift conglomerate. At this depth I found, protruding horizontally from the wall, its end only sticking out, a petrified tree of about a foot in diameter, a fragment of which I broke off as a specimen. How did this tree get there? I also picked up at this point, upon the shelf on which I was standing, a species of iron ore, probably red hematite. The colonel commanding returning to camp, after a cursory look at the cañon, in order to put the troops in motion for the day's march, I had not the time necessary to make the full examination which I would have liked. I saw, however, enough to assure me that this cañon is not more worthy the attention of the lover of nature than it is of the mineralogist and geologist."

Three days later, Lieutenant Simpson, attended by his assistant engineers and draughtsmen, and escorted by sixty men and several officers, went to reconnoitre the cañon. The account he gives of it is most curious and interesting. At its mouth the walls were low; but as he proceeded, their altitude increased, until, at about three miles from the entrance, they assumed a stupendous appearance. The floor of the ravine, which in some places was no more than one hundred and fifty feet wide—although generally more than double that width—is a heavy sand. "The escarpment walls, which are a red amorphous sandstone, are rather friable, and show imperfect seams of stratification—the dip being slight, and towards the west. Almost perfectly vertical, they look as if they had been chiselled by the hand of art; and occasionally cizous marks, apparently the effect of the rotary attrition of contiguous masses, could be seen on their faces." Having proceeded about three miles, the party turned into a left-hand branch of the cañon. This branch was one hundred and fifty to two hundred yards wide, and its walls of the same towering height as those of the main line of ravine. Two or three patches of corn, with melons and pumpkins growing amongst it, were met with on the way; and then, after following this left-hand branch for half a mile, Mr Simpson turned to his right up a narrow secondary branch, enclosed between vertical walls three hundred feet high, which in some places are without a seam in their surface from top to bottom.

"About half a mile up this branch," continues Mr Simpson, "in the right-hand escarpment wall, is a hemispherical cave, canopied by some stupendous rocks, a small, cool, acceptable spring being sheltered by it. A few yards further, this branch terminates in an almost vertical wall, affording no pathway for the ascent or descent of troops. At the head of this branch I noticed two or three hackberry trees, and also the stramonium, the first plant of the kind we have seen. Retracing our steps to the primary branch we had left, we followed it up to its head, which we found but two or three hundred yards above the fork—the side walls still continuing stupendous, and some fine caves being visible here and there within them. I also noticed here some small habitations, made up of natural overhanging rock, and artificial walls, laid in stone and mortar—the latter forming the front portion of the dwelling."

It would be necessary to transcribe the whole of Mr Simpson's minute account of his visit to the cañon and its branches, in order to convey to the reader a just idea of that most extraordinary and gigantic fissure. Even then the idea obtained might be incommensurate with the grandeur of the subject, if the description were unaided by the three plates, dashed off with a bold, rough pencil, in which Simpson's draughtsman has given us a better notion of the grim aspect and huge proportions of the ravine than words could well supply. Having explored the lateral branches, without seeing any sign of the celebrated fort, the party then continued their progress up the main channel, passing some ruined villages, perched on shelves of the rock wall. Near one of these, about five miles from the entrance, they observed, in the bed of the cañon, the ordinary Navajo hut, (a common Indian lodge of conical form, constructed of poles united at the apex, and covered with bark, bushes, and mud,) and, hard by it, a peach orchard.

"A mile further, observing several Navajos, high above us, on the verge of the north wall, shouting and gesticulating as if they were very glad to see us, what was our astonishment when they commenced tripping down the almost vertical wall before them as nimbly and dexterously as minuet-dancers! Indeed, the force of gravity, and their descent upon a steep inclined plane, made such a kind of performance absolutely necessary to insure their equilibrium. All seemed to allow that this was one of the most wonderful feats they had ever witnessed."

After this meeting, the party passed more ruins of considerable villages, mostly built on shelves, and accessible only by ladders. Fragments of curiously-marked pottery were picked up, of which drawings are given. The walls, still of red sandstone, increased in the magnificence of their proportions, at intervals presenting façades hundreds of feet in length, and three or four hundred in height, beautifully smooth and vertical. About eight miles up the cañon, a small rill, previously lost in the deep sand, reappeared above ground. At last, at nine and a half miles from the entrance, the horses of the Pueblo Indians who accompanied him not being strong enough to go farther, and the much talked-of presidio or fort not appearing, Mr Simpson resolved to return to camp. The height of the walls, at the point where he turned back, he ascertained to be five hundred and two feet, and still increasing. The length of the cañon he conjectures—he does not mention on what grounds—to be about twenty-five miles. Its average width, as far as he ascended it, was two hundred yards.

"Both in going up and returning through the cañon, groups of Navajos and single persons were seen by us, high above our heads, gazing upon us from its walls. A fellow upon horseback, relieved as he was sharply against the sky, and scanning us from his elevation, appeared particularly picturesque. Whenever we met them in the cañon, they were very friendly—the principal chief, Martinez, joining and accompanying us in our exploration, and the proprietors of the peach orchards bringing out blanket-loads of the fruit (at best but of ordinary quality) for distribution among the troops. I noticed the cross, the usual emblem of the Roman Catholic faith, stuck up but in one instance in the cañon, and this is the only one I have seen in the Navajo country."

Mr Simpson was assured by Martinez that he and his companions were the first American troops that had visited Chelly. His visit, he considers, has solved the mystery of the wonderful cañon, and dissipated the notion previously entertained that upon a plateau, near its mouth, stood a high insulated fort, to which the Navajos repaired when danger approached. The report was very likely to be originated by the elevated position of some of the old Mexican villages, and also, perhaps, by the lofty shelves of the rock walls, to which the sure-footed Navajos may have fled when enemies were at hand, and to scale some of which would have taken more than the "fifteen ladders" spoken of by Caravajal. We cannot but regret that Mr Simpson did not prosecute his researches till he reached the extremity of the main cañon. However unnecessary in a military point of view, the results of such an expedition could not have been otherwise than highly interesting to science, and especially to the geologist. We can hardly doubt that the perusal of his report will stimulate adventurous travellers to an early exploration of the wonderful cañon. It offers, indeed, a wide field for speculation, and abounds in points of the strongest interest. Its origin—whether a natural fissure or from aqueous agents (Mr Simpson seems to incline to the former hypothesis)—its ruins, broken pottery, and other antiquities—its minerals and plants, are all fresh and fascinating subjects for investigation. The Navajos, too, are a people well worth making acquaintance with; presenting, as they do, a singular mixture of barbarism with ingenuity and civilisation. From what Mr Simpson had seen of them, he fully expected, on ascending the cañon, to find they had better habitations than the wretched wigwams we have already described. But no others did he discover, save ruined houses and villages, of whose origin the Navajos could give no account; and he was struck by the anomaly, that dwellers in miserable mud lodges should be the best blanket manufacturers in the world. "The sarape Navajo," says Gregg, in his Commerce of the Prairies, "is of so close and dense a texture, that it will frequently hold water almost as well as gum-elastic cloth. It is, therefore, highly prized for protection against the rains. Some of the finer qualities are often sold among the Mexicans as high as fifty or sixty dollars each." Gregg also speaks of the Navajos producing "some exquisite styles of cotton textures," and of their ingenuity in feather embroidery; but Mr Simpson could discover amongst them no traces of either of these two arts, although they are fond of decorating their persons with plumage of birds, and display much taste in its selection and arrangement. Mr Simpson particularly noticed their wickerwork bowls and vases, which, like the blankets, held water, and were superior to anything of the kind he had seen in the States. The credit of making these was attributed, not to the Navajos, but to the Coystero Indians.

After quitting the neighbourhood of the Navajos, Lieutenant Emory and "The Army of the West" marched due south, following the course of the Del Norte for a distance of more than two hundred miles from Santa Fé. Turning off from the river, after parting with their waggons by reason of the badness of the road, their progress continued, without anything of particular interest occurring, until they reached the neighbourhood of the river Gila, when a number of Apache Indians, a tribe celebrated for their thievish propensities, came into camp, headed by their chief, Red Sleeve, swore eternal friendship to the Americans, and everlasting hatred to the Mexicans. Henceforward, they protested, the white man might pass alone and unharmed through their country: if on foot, he should be mounted—if hungry, they would give him food. Carson, the guide, only twinkled his keen eye, and declared he would not trust one of them. They were eager to trade.

"They had seen some trumpery about my camp which pleased them, and many of them collected there. My packs were made. One of my gentlest mules at that moment took fright, and went off like a rocket on the back trail, scattering to the right and left all who opposed him. A large, elegant-looking woman, mounted a straddle, more valiant than the rest, faced the brute, and charged upon him at full speed. This turned his course back to the camp; and I rewarded her by half-a-dozen biscuits, and through her intervention, succeeded in trading two broken-down mules for two good ones, giving two yards of scarlet cloth in the bargain. By this time, a great number of Indians had collected about us, all differently dressed, and some in the most fantastical style. The Mexican dress and saddles predominated, showing where they had chiefly made up their wardrobe. One had a jacket made of a Henry Clay flag, which aroused unpleasant sensations; for the acquisition, no doubt, cost one of my countrymen his life. Several wore beautiful helmets, decked with black feathers, which, with the short shirt, waist-belt, bare legs, and buskins, gave them the look of antique Grecian warriors. Most were furnished with the Mexican cartridge-box, which consists of a strap round the waist, with cylinders inserted for the cartridges."