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Show Record into the river, such as a tree or rock, so that may cause a current of water to be directed along a different line than the deepest 5361 portion of the river. If some obstruction should cause the swiftest part of the stream to run in certain direction out of line with the channel it is possible that if condition continued the channel would shift accordingly, but the swiftest part of the river is the channel. 5362 Resuming his direct examination Mr. Wolverton testified: Sometimes during the high spring water the river may flow against a ledge of rock or other projection and during that tem-porary period, while the water is at that height, may cause the current to apparently cross the stream along a line that is not 5363 the channel or the deepest portion of the river. My observation has been that the channels of the Green and Colorado Rivers are well defined within certain limits and cannot get very far one way or the other. Knowledge of the Green and Colorado Rivers and boating ex-perience upon them is of value to one attempting to navigate them and to do so one must know something about those river through practical experience. At the Cataracts and from the Cataracts up to the junction of the rivers there is remarkably fine building stone. So far as I am aware no attempt has ever been made to market that stone. Some of it is a brown stone, very hard and in slabs. There is also a limestone, which comes in layers or slabs and is blue in color with evidence of vegetable or animal life left there, which has become hard and by polishing the surface of the blue line rock 5364 show off the pink kanoids wonderfully. These deposits of building Stone extend for about five and a half or six miles in length and vertically almost from the river bed to a height of thirteen hundred feet. It would not be practical to work those quarries of 5366 building stone except from the bottom of the canyon. I know of no method of getting that building stone out from there except by the |