Category Archives: Uncategorized

Colorado River Historic High Water Level Within The Grand Canyon

This report was commissioned by GCPBA for the benefit of the private boater.  John Vrymoed, author of the report, is a registered civil and geotechnical engineer in California, now retired.  He is a published author on topics related to earthquake … Continue reading

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Groovers on the Grand

So am I correct that one can use a rocket box by itself as a groover on the Grand? No insert is required?

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Grand Canyon River Mile Directory – Camps, Rapids and Features

Grand Canyon Colorado River Rapids, Camps and Features By Mile DirectoryA

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