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Portland (/ ˈ p ɔːr t l ə n d / PORT-lənd) is the most populous city in the U.S. state of Oregon, located in the Pacific Northwest region. Situated in the northwestern area of the state at the confluence of the Willamette and Columbia rivers, it is the county seat of Multnomah County, Oregon's most populous county.
Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the early 19th century by Joseph Aspdin, and is usually made from limestone.
A compressed earth block ( CEB ), also known as a pressed earth block or a compressed soil block, is a building material made primarily from an appropriate mix of fairly dry inorganic subsoil, non-expansive clay, sand, and aggregate. Forming compressed earth blocks requires dampening, mechanically pressing at high pressure, and then drying the ...
Portland Children's Museum was a children's museum located in Portland 's Washington Park, adjacent to the Oregon Zoo. Founded in 1946, Portland Children's Museum was the sixth oldest children's museum in the world and the oldest west of the Mississippi. [citation needed] The 50,000 sq ft (4,600 m 2) museum received over a quarter of a million ...
Coordinates. 45°31′42″N 122°43′30″W / . 45.52829°N 122.72507°W. / 45.52829; -122.72507. Elevation. 328 feet (100 m) Completed. 1935–1936. The Stone House, also known as the Macleay Park Shelter and the Witch's Castle or Witches Castle, [1] [2] is a two-story [3] structure in Portland, Oregon 's Forest Park, in the United ...
Alpenrose Dairy. Coordinates: 45°28′47″N 122°44′26″W. Alpenrose Dairy is a dairy and home delivery company located in the Hayhurst neighborhood of southwest Portland, Oregon, since 1916. It was owned by the Cadonau family for several generations until being sold to Smith Brothers Farms, a family-owned dairy located in Kent, Washington ...
Provisional Government of Oregon district boundaries drawn in 1843, showing eventual U.S. border and states. The history of the city of Portland, Oregon, began in 1843 when business partners William Overton and Asa Lovejoy filed to claim land on the west bank of the Willamette River in Oregon Country. In 1845 the name of Portland was chosen for ...
Portland stone. Portland stone is a limestone geological formation (formally named the Portland Stone Formation[ 1]) dating to the Tithonian age of the Late Jurassic that is quarried on the Isle of Portland in Dorset, England. [ 1] The quarries are cut in beds of white-grey limestone separated by chert beds.