T)2 SMITHSONIAN INSTITUTION 



annoyed a few days earlier by having a heavy shower pass within a 

 few miles of the bare rock expanse that catches most of his water. 

 Consequently he had to get up each morning at 2 : 30 and haul water 

 in barrels on a truck from Wah-Wah Spring, 31 miles away for 33 

 head of cattle ! Information he was able to give us and the fact that 

 our engine was functioning perfectly caused us to risk a reduction of 

 our car's water supply and we gave one of the cows 9 gallons. 



Upon returning from our investigations in the desert ranges, we 

 decided to visit the nearby Zion National Park. Quite unexpectedly 

 we found that, as in the Algonkian rocks of the Grand Canyon, the 

 much younger sediments in Zion Canyon also lack fossils except algal 

 limestones. 



The final field for investigations before beginning our homeward 

 journey lay in the vicinity of the Yellowstone Park plateaus. Conse- 

 quently we went north from Zion by way of Bryce Canyon and the 

 Sevier Valley through the Salt Lake region, then by way of Star Val- 

 ley to the Tetons. 



From about the 24th of July onward the rains that had been increas- 

 ing in frequency all summer began to interfere with our travel and 

 work. In the Teton Range, where last season not a drop of rain fell 

 all summer, it was almost continuous. Our tents were wet for weeks 

 at a time. Finally rain became so frequent and so violent that few 

 roads remained open. For this reason we abandoned our attempts 

 to reach several localities and went northward away from the high 

 regions. During our investigations in the Tetons and the Yellowstone 

 we were accompanied by Dr. Curt Teichert and Mrs. Teichert of 

 Freiburg, Germany. 



Our final studies in the Rocky Mountains were in the Beartooth 

 Range near Red Lodge, Montana, where Princeton University has 

 begun geologic studies. Scarcely another region in North America 

 exhibits such varied geology, and if researches are continued for a 

 sufficient length of time, important results may be expected. This 

 appears to be the focal point where the Rocky Mountains change their 

 general type of structure, and the extensive Yellowstone Plateau with 

 its lava flows ends, joining both the central and northern types of 

 ranges, and where the results of glacial, erosional, and other geologic 

 processes are clearly exhibited. 



