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  • Trask Toll Road

    The Trask River Wagon Toll Road may have given travelers “the most awful ride in the world”—a description taken from a passenger's account written in …

    Oregon Encyclopedia

  • Treasure Trove Law

    Oregon’s Treasure Trove Act (ORS 273.718-273.742), which lasted from 1967 to 1999, regulated persistent treasure-hunting activity on state lands, especially in the Neahkahnie Mountain area …

    Oregon Encyclopedia

  • Trinity Episcopal Cathedral

    The history of Trinity Episcopal Church, now the cathedral of the Diocese of Oregon, has been an integral part of the history of Portland and …

    Oregon Encyclopedia

  • Triple Nickles -- 555th Parachute Infantry Battalion

    The 555th Parachute Infantry Battalion, nicknamed the "Triple Nickles" (using the English spelling of 'nickel'), was a World War II African American unit of the …

    Oregon Encyclopedia

  • Trojan Nuclear Power Plant

    The Trojan Nuclear Power Plant, located in Columbia County about twelve miles north of St. Helens, began generating power in March 1976. It shut …

    Oregon Encyclopedia

  • Troutdale Aluminum Plant

    In November 1941, bulldozers advanced into the green meadows of the Sundial Ranch southeast of Troutdale, Oregon, carving out a site for an aluminum reduction …

    Oregon Encyclopedia

  • Tryon State Park

    Located in southwest Portland, Tryon Creek State Park is a 635-acre, undeveloped natural area that contains numerous native species of both flora and fauna. …

    Oregon Encyclopedia

  • Tualatin peoples

    Tualatin (properly pronounced 'twälə.tun in English) was the name of a collection of related but independent villages whose members spoke a dialect of Northern Kalapuya, …

    Oregon Encyclopedia

  • Tualatin Riverkeepers

    Tualatin Riverkeepers, a community-based organization that works to protect and restore Oregon’s Tualatin River system, builds watershed stewardship through education, public access, restoration, and advocacy. …

    Oregon Encyclopedia

  • Tualatin, City of

    The City of Tualatin is twelve miles south of Portland, on the southeastern edge of Washington County and extending into Clackamas County. The town …

    Oregon Encyclopedia