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Album caption: Guy and Slate Peaks from Snoqualmie Pass. King County, Washington. Index card: Scenic view of Guye and Slate Peaks from Snoqualmie Pass. King County, Washington. n.d.
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Album caption: Continuous harmonic tremor recorded by the University of Washington, Seattle, during the eruption of July 22, 1980. King County, Washington. July 22, 1980. (Photo by Henry Spall) Portion published on p. 225, upper right photo, in U.S. Geological Survey. Earthquake information bulletin. 12, no.6. November–December 1980. Index card unavailable.
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Conclusions: The amount of upstream impervious area affects downstream fish habitat quality, channel stability, and water quality. The use of riparian buffers can reduce the magnitude of urban impacts, however, they cannot fully mitigate the impacts of upstream development in the watershed. Threshold percentages of impervious areas , as well as the percentage of forest cover in a watershed appear to be the most effective indicators of watershed health. Thresholds/Learnings: Impervious areas should be kept at or below 10% of a watershed, and forest cover should be maintained at a minimum of 65% in order to effectively mitigate the impacts of urbanization and development on watersheds. Synopsis: This paper articulates...
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Album caption: Rapids in upper Snoqualmie. King County, Washington. Index card: Scenic view of rapids on the Upper Snoqualmie River. King County, Washington. n.d.


    map background search result map search result map Rapids in upper Snoqualmie. King County, Washington. circa 1900. Guye and Slate Peaks from Snoqualmie Pass. King County, Washington. circa 1900. Continuous harmonic tremor recorded by the University of Washington during the eruption of July 22. King County, Washington. 1980. Urbanization of aquatic systems: degradation thresholds, stormwater detection, and the limits of mitigation. Continuous harmonic tremor recorded by the University of Washington during the eruption of July 22. King County, Washington. 1980. Urbanization of aquatic systems: degradation thresholds, stormwater detection, and the limits of mitigation. Rapids in upper Snoqualmie. King County, Washington. circa 1900. Guye and Slate Peaks from Snoqualmie Pass. King County, Washington. circa 1900.