. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean . w ►J PC i CO :- H !>. TABLES OF GRAND RIVER VALLEY. // . 51 •*:*.• animals, which had been eleven hours in making fourteen miles. One of6$r wagons had brokenan axletree in the passage of the first hill in the morning, and did not arrivd<at camp until latein the evening. On each side of the river to-day, and, as we can see, for some days/ahead, thebanks rise rapidly towards the precipitous sides of the mesas, which extend back frori
. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean . w ►J PC i CO :- H !>. TABLES OF GRAND RIVER VALLEY. // . 51 •*:*.• animals, which had been eleven hours in making fourteen miles. One of6$r wagons had brokenan axletree in the passage of the first hill in the morning, and did not arrivd<at camp until latein the evening. On each side of the river to-day, and, as we can see, for some days/ahead, thebanks rise rapidly towards the precipitous sides of the mesas, which extend back froriififteen tothirty miles to the mountains. These elevated tables are in classes, each class level, though on opposite sides of the river, and consisting of the same formations—all -ofthem terminated at the top by a capping of greater or less thickness of igneous rocks, overlaid bya few feet of soil, on which, occasionally, small groves of trees may be seen. They were formed,doubtless, by the upheaval of large plains at the same time; and the immense cracks andcrevices of those convulsions have been enlarged, in time, by the elements, and now form theca
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