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510 results
  • Nutria

    Nutria, a large, semi-aquatic rodent native to South America, were brought to the United States for their fur in the 1880s. They were introduced to …

    Oregon Encyclopedia

  • Oaks Bottom

    Oaks Bottom, Portland’s first urban wildlife refuge, is located on the east bank of the Willamette River opposite the upstream tip of Ross Island. …

    Oregon Encyclopedia

  • Oregon Chub

    Oregon chub (Oregonichthys crameri) are small minnows that exist only in the Willamette Valley of western Oregon. This species was formerly distributed throughout …

    Oregon Encyclopedia

  • Oregon Rangers

    The Oregon Rangers, an organized militia based in Oregon’s Willamette Valley, was the first nonindigenous armed force in the Pacific Northwest. The Provisional Government …

    Oregon Encyclopedia

  • Owyhee Canyonlands

    Situated in the far southeastern corner of Oregon, the Owyhee Canyonlands is one of the wildest regions in the contiguous United States. This scenically stunning …

    Oregon Encyclopedia

  • Pacific madrone

    On May 2, 1792, Archibald Menzies, a surgeon and naturalist on the George Vancouver Expedition, landed on the shores of an island where the Straits …

    Oregon Encyclopedia

  • Port Orford Cedar

    Port-Orford-cedar (Chamaecyparis lawsoniana)—also known as white or Oregon-cedar, ginger-pine, or Lawson cypress—is widely known and recognized for its horticultural uses and the quality …

    Oregon Encyclopedia

  • Portland Art Museum

    The Portland Art Museum, which opened in 1895 in the city library with casts of classical sculptures and prints of European paintings, is a nationally …

    Oregon Encyclopedia

  • Portland Basin Chinookan Villages in the early 1800s

    During the early nineteenth century, upwards of thirty Native American villages were documented in the Portland Basin (present-day Multnomah, Clark, Clackamas, and east Columbia Counties). …

    Oregon Encyclopedia

  • Ralph James Salisbury (1926-2017)

    Ralph James Salisbury was an Oregon poet, author, editor, and teacher. He is the author of eleven books of poetry, including Rainbows of Stone (2000), …

    Oregon Encyclopedia