Figure 10. View toward the northwest from the top of Haskell Rock. The river here runs nearly perpendicular to the bedrock layers, causing the step-like rapids. The mostly submerged rocks have well defined layers of siltstone, fine sandstone, and conglomerate, in contrast with the conglomerate of Haskell Rock which is more massive and lacks obvious layering. This accounts for why the rocks have eroded so differently and why the style of the rapids changes over such a short distance. (Photo by Robert Johnston.)

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Last updated on October 24, 2005

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