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Show Record map the geology in the canyon of the Green River and in the canyon of the Colorado. We had a 16 foot row boat equipped with a twin cylinder Evinrude motor. We used the motor very little on the down stream trip. We were mapping geology and not trying to make speed. However, we had a great deal of difficulty in the first 21 miles, because of numerous rapids. We were in the water most of the time trying 4183 to get the boat down the stream. We were three days going from Greenriver to the mouth of the San Rafael, where we had to wade the stream several times and drag the boat over the gravel, because the channels were so divided it was very difficult to find one continuous channel where the boat would float. At another point, where the channel made a sharp curve, our boat nearly turned over, due to the swiftness of the current. From the mouth of the San Rafael down to the junction there was only one riffle about 8 miles above the junction, but that wasn't very bad. We had a great deal of difficulty avoiding sand bars and we were in the water a good deal of the time trying 4184 to find continuous channel. I do not know how long we were from the mouth of the San Rafael to the mouth of the Green but the entire trip took 18 days. After we got to the mouth of the Green we went up the Colorado to Moab. By reason of a rain the water on the Colorado was deoper. At the Slide, near the junction of the rivers, the water was so swift that the motor was just barely able to move the 4185 boat through. Above the Slide we had very little difficulty and did not encounter any sand bars untill we got 15 or 20 miles above the junction. I do not remember the exact place. We had most trouble in that mile below the bridge at Moab. We arrived Moab October 13, 1926. Our boat equipped with the Evinrude motor drew 4186 about a foot and a half of water. In mapping the geology we would go slow enough so we could map as the boat progressed. We had to stop several places. 600 |