March 22 marks a solemn day in Washington history. It was 11 years ago when the Oso/SR 530 landslide occurred.

OSO, Wash. — The small community of Oso, Washington, on Friday inaugurated a memorial honoring the 43 people killed at the site 10 years ago in the deadliest landslide in U.S. history. Hundreds ...

OSO, Wash. (AP) — The small community of Oso, Washington, on Friday inaugurated a memorial honoring the 43 people killed at the site 10 years ago in the deadliest landslide in U.S. history.

The small community of Oso, Washington, on Friday inaugurated a memorial honoring the 43 people killed at the site 10 years ago in the deadliest landslide in U.S. history.

The small community of Oso, Washington, has inaugurated a memorial honoring the 43 people who died at the site 10 years ago in the deadliest landslide in U.S. history ...

OSO, Wash. — Friday marks 10 years since the deadliest landslide in American history in Oso, Washington. As families commemorate the lives lost on its anniversary, lawmakers who spearheaded ...

OSO, Wash. — After the mountainside collapsed, obliterating a neighborhood and 43 lives in the worst landslide disaster in U.S. history, Jessica Pzsonka made a promise — to herself, to her ...