Pierce County, Washington

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Pierce County is the second most populous county in the state of Washington. It was named for U.S. President Franklin Pierce.

Related Topics:
State - Washington - U.S. President - Franklin Pierce

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As of 2004, the population was 744,000. The county seat is Tacoma, on Commencement Bay, which is also the county's largest city.

Related Topics:
2004 - Tacoma - Commencement Bay

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Pierce County is notable for being home to the Mount Rainier volcano, the tallest mountain in the Cascade Range. Its most recent recorded eruption was between 1820 and 1854. There is no imminent risk of eruption, but geologists expect that the volcano will erupt again. If this should happen, parts of Pierce County and the Puyallap Valley would be at risk from lahars, lava, or pyroclastic flows. The Mount Rainier Volcano Lahar Warning System was established in 1998 to assist in the evacuation of the Puyallup River valley in case of eruption.

Related Topics:
Mount Rainier - Volcano - Cascade Range - 1820 - 1854 - Lahar - Lava - Pyroclastic flow - Puyallup River

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