Area	Upper Redwood
Topic	Sediment: Road Densities in the Twin Lakes Calwater Watershed

 

Caption:  This road density chart is for the Twin Lakes Calwater watershed of Redwood Creek and shows that the density of roads here is relatively high. Interfluve areas are not shown here, but were included in calculating the Calwater average. Studies in Washington State (Cedarholm, 1981) found that fine sediment in salmon redds increased as road densities exceeded 3 miles of road per square mile of landscape. This value is shown as a threshold above for comparison. Click on Info Links for more background information. Data are provided by Redwood National Park.

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To learn more about this topic click Info Links .
To view a table of information about this data click Metadata .
To view the table with the chart's data, click Chart Table web page.
To download the table with the chart's data, click rc_road_twin_lakes2.dbf (size 2,326 bytes) .
To view the table with the chart's source data, click Source Table web page.
To download the table with the chart's source data, click rc_road_source.dbf (size 12,915 bytes)
 
 

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