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Show 782 " A. That is a bench mark, a permanent bench mark along a spirit level line, a precise level line run by the survey between Greenriver, Utah, and Flagstaff, Arizona, and is the basis for the elevations on this map -- I mean, that is one of them. " If you follow up stream you will see any number of permanent bench marks established along that river. " BY THE SPECIAL MASTER: " Q. Is that in the bed of the stream there? " A. No, sir, it would be above the bed of the stream. It is a concrete post with a brass tablet set inside with the elevation stamped on it." R. 1866- 1867. He explained that between miles three and mile four, where the No. 4300 is noticed, it simply means the top-ography at that place was up to the forty- three hundred foot contour, and that the contours were merely sketched in up to that elevation. R. 1867- 1868. There were many places on the Colorado River where the walls are much higher than thirty- nine hundred feet, which would not be shown if the map only was made to show contours up to thirty- nine hundred feet above sea level. Each contour line on the map represents a rise of twenty feet. This contoured interval is indicated on the map. He then explained that the blue lines as shown at mile eleven re-presents a stream course with water in it, and a blue broken line represents an intermittent stream course. R. 1868. These markings are standard on all maps, and the double line, running down the side of the river at mile twenty, represents a second class road, is a |
