WELL WATER FOR DRY-FARMING 339 
farm territory. One of the main efforts of the day 
is the determination of the occurrence of the sub- 
terranean waters in the dry-farm territory. 
Ordinary dug wells frequently reach water at com- 
paratively shallow depths. Over the cultivated 
7 
Fic. 93. Some dry-farm products. Montana. 
Utah deserts water is often found at a depth of 
twenty-five or thirty feet, though many wells dug 
‘to a depth of one hundred and seventy-five and two 
hundred feet have failed to reach water. It may be 
remarked in this connection that even where the 
distance to the water is small, the piped well has 
been found to be superior to the dug well. Usually, 
