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147 results
  • Cascade Locks

    A massive ground movement known as the Bonneville Landslide, which occurred about 1200 AD, briefly blocked the Columbia River. The river subsequently broke through …

    Oregon Encyclopedia

  • Cast iron buildings in Portland

    Portland is home to the second largest collection of cast iron architecture in the United States, just behind New York City’s historic Soho District. Cast …

    Oregon Encyclopedia

  • Cathlapotle

    Cathlapotle is the archaeological site of a major Chinookan town located in the Portland-Vancouver metropolitan area, at the place where Lake River, Gee Creek, …

    Oregon Encyclopedia

  • Celilo Falls

    Celilo Falls (also known as Horseshoe Falls) was located on the mid-Columbia River about twelve miles east of The Dalles. It was part …

    Oregon Encyclopedia

  • Celilo Fish Committee (1935 - 1957)

    Members of Umatilla, Yakama, and Warm Springs tribes joined unenrolled Mid-Columbia Indians to establish the Celilo Fish Committee in 1935. The committee had been proposed …

    Oregon Encyclopedia

  • Climate Change and the History of Energy in Oregon

    Unlike in other parts of the country, hydropower is the largest source of electricity in Oregon and the Northwest. As a result, the region has …

    Oregon Encyclopedia

  • Columbus Day Storm (1962)

    On the morning of Friday, October 12, 1962—Columbus Day—a massive storm hit the coast of northern California. The storm had originated several days earlier in …

    Oregon Encyclopedia

  • Community of McKenzie Bridge

    The unincorporated community of McKenzie Bridge is located along the McKenzie Highway (Route 126) at milepost 50. The location, according to Oregon Geographic Names, …

    Oregon Encyclopedia

  • Corvallis

    Nestled on the west side of the mid-Willamette River, Corvallis is dominated by Oregon State University, the state’s largest university, and is …

    Oregon Encyclopedia

  • Crisis in the Klamath Basin (documentary film)

    The 1958 KGW-TV documentary Crisis in the Klamath Basin broke important new ground for producer Tom McCall, the genre of documentary television, and above …

    Oregon Encyclopedia