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Updated: May 7, 2025
My chief excuse for going up the mountain was to erect a signal at or near the top which Hendriksen could use as a station in order to make his triangulation more exact. My real object, it must be confessed, was to enjoy the satisfaction, which all Alpinists feel, of conquering a "virgin peak." Climbing Coropuna
Captain Bonneville made a camp at Chimney Rock, the height of which, according to his triangulation, was one hundred and seventy-five yards. On the 21st he made camp amidst the high and beetling cliffs, known a few years afterward as Scott's Bluffs.
Smith the Patrons' Medal of the Royal Geographical Society, he said: "You have not, like an ordinary explorer, made a common route survey, but you have made a scientific survey, a triangulation frequently checked by astronomical observations with theodolite and chronometer."
From such a hypsometric basis the reliefs for the whole country are determined, by running lines of levels, by trigonometric construction, and in mountainous regions by barometric observation. The primary triangulation having been made, the topography is executed by a variety of methods, adapted to the peculiar conditions found in various portions of the country.
In 1898 George Eldridge and Robert Muldrow, of the United States Geological Survey, traversed the region, and Muldrow estimated the height of the mountain by triangulation at twenty thousand three hundred feet. In 1899 Lieutenant Herron crossed the range from Cook's Inlet and reached the Kuskokwim.
After the oscillations of value, division of labor is the economic fact which influences most perceptibly profits and wages. It is the first stake driven by Providence into the soil of industry, the starting-point of the immense triangulation which finally must determine the right and duty of each and all. Let us, then, follow our guides, without which we can only wander and lose ourselves.
Bill smiled and shook his head. "I guess you just haven't given it any consideration. There are lots of easier and better ways. Triangulation. Now, for instance, suppose an army comes to a wide river and wants to get across. They can't send anybody over to stretch a line; there may be enemy sharp-shooters that would get them and it is too wide, anyway.
The survey was carried along the western shore, and while so engaged I determined the width of the upper wide part by triangulation at two points, the width of the narrow middle part at three points, and the width of the lower part, at three points. Dr. Dawson on his way out made a track survey of the eastern shore.
The geographic basis of this map is a trigonometric survey by which datum points are established throughout the country; that is, base-lines are measured and a triangulation extended therefrom. This trigonometric work is executed on a scale only sufficiently refined for map-making purposes, and will not be directly useful for geodetic purposes in determining the figure of the earth.
On the 23rd, we ascertained the elevation of the highest peak of the island by triangulation to be three thousand one hundred and twenty-six fet. The easternmost island of the Palawan group, Busuanga, was at the time just in sight from the deck, to the southwest.
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