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Echo Rock (Pierce County, Wash.)

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  • Variants

    • Seattle Rock (Wash.)
  • Broader Terms

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  • Sources

    • found: Work cat.: Echo and Observation Rocks viewed from Morraine Park, Mt. Rainier, n.d., via the Dwight Watson digital images collection, Mar. 6, 2008.
    • found: GNIS, Mar. 6, 2008(Echo Rock, pillar, Pierce County, Wash., 46°54ʹ25ʺN 121°48ʹ02ʺW, elev. 7828 ft./2386 m.)
    • found: Washington place names, via WWW, Mar. 6, 2008(Echo Rock. This rock with an upper elevation of 7862 feet is between the Carbon Glacier and the lower terminus of Russell Glacier in northwest area of Mount Rainier National Park. It projects above fields west of the Carbon River. An alternate name is Seattle Rock)
    • found:, Mar. 6, 2008(Echo Rock, Washington, Pierce County, 46°54ʹN 121°48ʹW, elev., 7870 ft./2399 m., Cascade Range, South Washington Cascades, Mount Rainier area, Mount Rainier Massif; also lists Echo Rock as part of the Olympic Mountains in Jefferson County)
    • found: Web site, Mar. 8, 2008(Echo and Observation Rocks are conspicuous pyramids that punctuate the terrain on the northeastern fringe of lower Ptarmigan Ridge. Echo Rock is a craggy outcrop nearly surrounded by the Russell Glacier, while Observation Rock has a more temperate form with merely a short cliff facing east. Both Echo and Observation are remnants of two satellite cones that erupted after Mount Rainier was nearly full grown.)
    • found: Hike review of Echo Rock, Mount Rainier National Park, Washington, with pictures, via WWW, Mar. 8, 2008(Echo Rock and Observation Rock; two large cinder cones up against Mount Rainier)
    • found: America's volcanic past : Mount Rainier National Park, Washington, via WWW, Mar. 8, 2008(Observation Rock and Echo Rock are dissected satellitic volcanoes, which erupted olivine andesite upon Mount Rainier's northwestern flank late in its history)
  • Change Notes

    • 2008-04-04: new
    • 2008-04-05: revised
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