Across the head of the second drop in Gneiss Canyon Rapid after the flow through Glen Canyon Dam had been reduced to 1,000 cfs

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  Gneiss Canyon Rapid when the flow had been cut to 1,000 cfs. at Glen Canyon Dam

  Manuscripts

  mssMarston papers V096/0097

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  Belknap Turbocraft cruising up the canyon at Bridge Canyon Damsite when flow through Glen Canyon Dam had been cut to 1,000 cfs

  Manuscripts

  mssMarston papers V096/0149

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  Down river from mooring of the two Belknap boats when the flow through Glen Canyon Dam had been cut to 1,000 cfs

  Manuscripts

  mssMarston papers V096/0129

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  Bill Belknap's Turbocraft and SmithCraft at upper end of Lake Mead. The flow in the river has been cut to about 1,000 cfs. About Mile 236 with Gneiss Canyon Rapid in the distance

  Manuscripts

  mssMarston papers V096/0128

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  The Turbocraft operated by Bill and Buzz Belknap moored at the head of Lake Mead in the spring of 1963 when the flow had been cut to about 1,000 cfs. About Mile 236

  Manuscripts

  mssMarston papers V096/0127

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  Bill Belknap's Turbocraft and SmithCraft at head of Lake Mead, Mile 236. The flow in the river has been cut to about 1,000 cfs

  Manuscripts

  mssMarston papers V096/0126