| Area   | 
         Mainstem Trinity  | 
     
     
         | Topic | 
         Flow: Inflow vs. Trinity 1992 | 
     
 
 
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   Caption:  Both 1991 and 1992 were part of a series of drought years. As a result, Trinity River flows at Lewiston were higher than they would have been from natural runoff.  The flow peak in early June 1992 was related to the U.S. Fish and Wildlife Service Flow Study. Data provided by the U.S. Bureau of Reclamation and U.S. Geologic Survey.
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