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Fig. 136. — Prehistoric Indian canal east of Mesa, Arizona, partly recondi- 

 tioned and used by Mormon pioneers of 1878; subsequently replaced by the 

 modern Consolidated Canal. ( Photograph by Sgt. R. A. Stockwell ; courtesy 

 of the Chief of Air Corps, U. S. Army.) 



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■Site..-- 



Fig. 137.- 'The Park of Four Waters," near Phoenix, preserves remnants 

 of old Indian canals and the " Swilling Ditch " of 1807. On the right margin, 

 close above the Grand Canal, Pueblo Grande ruin shows through the trees. 

 (Photograph by Sgt. R. A. Stockwell; courtesy of the Chief of Air Corps, 

 U. S. Army.) 



158 



