The flat-decked USGS skiff in Rapid No. 20. Rapid No. 20 heads at Mile 203.15 and drops 8 ft. in .15 miles. The boat is at the lower end of the island. Compare 64-3-31 CTCN 203-13

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  Ellsworth Kolb in USGS skiff in the Brown Betty Rapid, No. 1. The Brown Betty Rapid heads at Mile 212.3 and drops 4 ft. in .15 miles

  Manuscripts

  mssMarston papers V007/0197

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  Up to Rapid No. 20. The rapid heads at Mile 203.15 and drops 8 ft. in .15 miles. The island is covered in high water. Last week in June

  Manuscripts

  mssMarston papers V011/0036

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  Head of Rapid No. 19. No. 19 heads at Mile 203.7 and drops 6 ft. in .2 miles

  Manuscripts

  mssMarston papers V011/0009

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  Head of Rapid No. 19. No. 19 heads at Mile 203.7 and drops 6 ft. in .2 miles

  Manuscripts

  mssMarston papers V011/0010

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  Down to the head of Rapid No. 19. No. 19 heads at Mile 203.7 and drops 6 ft. in .2 miles

  Manuscripts

  mssMarston papers V011/0008

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  Ellsworth Kolb running the USGS flat-decked boat thru Rapid No. 2

  Manuscripts

  mssMarston papers V007/0230