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All the United States Washington Slide Memorial
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Slide Memorial

Memorial commemorating the deadliest landslide in U.S. history.

Arlington, Washington

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About

This roadside memorial park presents a poignant and impressive remembrance of the deadliest landslide in United States history. On March 22, 2014, the hillside north of State Route 530 near the town of Oso, Washington, gave way and 43 lives were lost. An area 1,500 feet by 4,400 feet was buried beneath 30 to 70 feet of mud, soil, and rock, destroying 49 homes.

A walk through this memorial park gives insights into the geology of the event, the actions of the first responders, the survivors, and those who perished. It is a thoughtful installation, dedicated on the 10th anniversary of the event.

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July 23, 2025

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  • https://snohomishcountywa.gov/3965/SR-530-Slide-Memorial-2024

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Memorials Landslide
Slide Memorial
28618 State Rte 530 NE
Arlington, Washington, 98223
United States
48.276629, -121.842678
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Photo of Washington

Washington

United States

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Nearby Places

Lime Kiln Trail

Granite Falls, Washington

miles away

Giant Cedar Stump

Arlington, Washington

miles away

Big Four Ice Caves

Granite Falls, Washington

miles away

Explore the Destination Guide

Photo of Washington

Washington

United States

Places 342
Stories 42

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