This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1864 Excerpt: …when it recrosses the Divide through Bear Eiver Gap, (where a tunnel 500 feet in length will be required, ) and thence follows the Bear Eiver slope of the Divide three and a half miles to Long Eavine. Some heavy work occurs on this portion of the line, hut witk the exception of the tunnel referred to, will not exceed the average of the work on the last five miles of the first division. The succeeding nine miles from Long Ravine to Gold Eun, com: prises some of the most formidable work encountered upon the Western slope of the mountains. Crossing Long Ravine at a hight of one hundred and fifteen feet, -the line curves sharply to the right, and passes with a maximum grade along the steep, and in many places precipitous side hill of Rice’s Ravine, crossing a sucession of short, steep side ravines and gulches, and intervening spurs, to Cape Horn; which is a precipitous, rocky bluff, about twelve hundred feet in hight above the American river. The construction of the Eoad around this point will involve much heavy work, though the material encountered is not of a very formidable character, being a soft friable slate, which yields readily to the pick or bar. The dip of the ledge is about seventy-five degrees, or nearly perpendicular; but as our line at this point crosses the line of stratification nearly at right angles, the cuttings will admit of a much steeper slope than can be generally adopted for that class of material. The road around this bluff will necessarily be mostly in excavation, as the construction of an embankment, even with a heavy retaining wall, would in many places be unsafe if not impracticable. Passing around the face ef thisV bluff, -with an aggregate curvature, in one direction, of one hundred and eightyBix degrees, the line enters Bobbers’ Eav…
