OCR Text |
Show Record vertical scale, so that the eye can catch the conditions and get a real picture of the conditions on the river, which it could not otherwise receive; so that the picture of the river is gotten, not only from what appears on the profile, but taking into consideration the differences in the elevations that are shown. The profile itself is the distances and elevation, together with the surface line. So far as I know all profiles for river work are shown in that way. I know of no better way. It is very satisfactory in practice. 4041 I have crossed the San Juan River several times at Ship- rock and other places. I have crossed the Green River a number of times at different places. I have crossed the Colorado River at a number of different places. I have spent a good deal of time in the office using the maps that have been prepared of the Colorado River, my own observations and those of others in working on or criticising proposed plans of development on the stream. The pur-pose of my study of the Colorado River has been the preparation of schemes of development by which the water resources of the river can be used to the best advantage of every one concerned. Exhibit 505 is a map prepared for a report to be published by the Geological Survey, showing a number of features of development and possible development of the water resources in the basin of the Colorado River above the mouth of the Green River. It shows irrigated land and proposed irrigation, developed power sites and power sites proposed for development and a general comprehensive scheme of development of the whole river system. In the State of Utah it shows a little of the irrigated land in the vicinity of Moab, a little land proposed or irrigation from the Dolores River near Monticello and an undeveloped reservoir site, known as the Dewey Site, a short 4043 distance below the mouth of Dolores River that is intended primarily for river regulation and power. The water, if and when used for irrigation, will be used below Grand Canyon somewhere. The map shows no land between the Utah line and the mouth of the Green River that could be irrigated from the Colorado River by gravity |