Focus on Sedimentary Environments

River system on an active stratovolcano

White River, Mount Hood, Oregon, USA

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sediment-laden stream
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A sediment-laden stream in the upper part of White River Canyon
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gravel-bed stream
  
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White River
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Sediment transport

Identify the predominant grain size(s) in the bed of the stream:

boulders
 cobbles
 pebbles
 granules
 very coarse sand
 coarse sand
 medium sand
 fine sand
 very fine sand
 silt and clay

What size of sediment was being transported in this river system when the photographs were taken?

boulders
 cobbles
 pebbles
 sand
 silt and clay

Page © ; last updated 29 July, 2002