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<br />Flood boundarie~ were estimated from:
<br />Regional stage-frequency relations.
<br />
<br />LYONS. COLO.
<br />
<br />NE/4 BOULDER 15' QUADRANGl.E
<br />
<br />N40075 -W10515/7.5
<br />Base by U.S. Geological Survey
<br />1968
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<br />7238
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