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    This map shows the unit-level results of a July and August 1992 habitat typing survey of the Russian River in the Alexander Valley reach.  Units are color-coded by 
habitat type with relative lengths of pools, riffles and runs (flatwater) displayed. Pool frequency was low, with only 21.7% pools of stream length as pools.  The surveyed 
reach extends from the confluence of Big Sulphur Springs to the intersection of the mainstem and the Alexander Valley Bridge.  Data were collected by Circuit Rider 
Productions. Scale = 1:126,547 .
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