At nine o’clock we set out, and crossed the ravine, watered by the small rivulet of St. Franciso, which separates Tejuco from the opposite mountains. The road was very rough and uneven, continually ascending or descending mountains of considerable extent, the strata of which were grit alternating with micaceous schistus, and presenting an immense quantity of rude masses, composed of grit and rounded quartz, forming a loose and friable kind of pudding-stone. The country appeared almost destitute of wood, presenting occasionally a few poor shrubs; there were no cattle to be seen, yet some of the tracts would certainly maintain sheep in great numbers. Having halted at a place about half way, we descended a very steep mountain, full a mile in the declivity, and entered a ravine, where we crossed a very good wooden bridge over the river Jiquitinhonha, which is larger than the Derwent at Derby. We rode along its margin, where the land appears much richer, presenting a good vegetable soil covered with underwood; and, proceeding about a league, arrived at the famed place called Mandanga. The habitations, which are about one hundred in number, are built detached, and are generally of a circular form, with very high thatched roofs, like African huts, but much larger. The walls are formed of upright stakes, interwoven with small branches, and coated with clay inside and out. The houses of the officers are of the same materials but of much more convenient form, and whitewashed within. Near some of the houses we observed inclosures for gardens, which, in some degree, enlivened the prospect, and gave an air of comfort to these rude and simple dwellings.
I remained here five days, during which I was occupied in viewing and examining various parts of the works, of which I shall here attempt to give a general description.
This rich river, formed by the junction of a number of streams which will be hereafter noted, is as wide as the Thames at Windsor, and in general from three to nine feet deep. The part now in working is a curve or elbow, from which the current is diverted into a canal cut across the tongue of land, round which it winds, the river being stopped just below the head of the canal by an embankment, formed of several thousand bags of sand. This is a work of considerable magnitude, and requires the co-operation of all the negroes to complete it; for, the river being wide and not very shallow, and also occasionally subject to overflows, they have to make the embankment so strong as to resist the pressure of the water, admitting it to rise four or five feet.