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Council Crest Park, commonly thought of as the highest point within city limits, is in the West Hills and rises to an elevation of 1,073 feet (327 m) The city's actual high point is a little-known and infrequently accessed point of 1,180 feet (360 m) near Forest Park. Tabor, an extinct volcanic cinder cone, which rises to 636 feet (194 m). Other bridges that span the Willamette river in the downtown area include the Burnside Bridge, the Ross Island Bridge (both built 1926), and the double-decker Marquam Bridge (built 1966).
Nearby Powell Butte and Rocky Butte rise to 614 feet (187 m) and 612 feet (187 m), respectively. Other bridges outside the downtown area include the Sellwood Bridge (built 2016) to the south; and the St.
At the time of its incorporation on February 8, 1851, Portland had over 800 inhabitants, a steam sawmill, a log cabin hotel, and a newspaper, the Weekly Oregonian.
The coin used for this decision, now known as the Portland Penny, is on display in the headquarters of the Oregon Historical Society.
Portland is approximately 100 miles (160 km) upriver from the Pacific Ocean on the Columbia. Three of downtown's most heavily used bridges are more than 100 years old and are designated historic landmarks: Hawthorne Bridge (1910), Steel Bridge (1912), and Broadway Bridge (1913).
Though much of downtown Portland is relatively flat, the foothills of the Tualatin Mountains, more commonly referred to locally as the "West Hills", pierce through the northwest and southwest reaches of the city. Portland's newest bridge in the downtown area, Tilikum Crossing, opened in 2015 and is the first new bridge to span the Willamette in Portland since the 1973 opening of the double-decker Fremont Bridge.
By the 1970s, Portland had well established itself as a progressive city, and experienced an economic boom for the majority of the decade; however, the slowing of the housing market in 1979 caused demand for the city and state timber industries to drop significantly. Helens, a highly active volcano 50 miles (80 km) northeast of the city in Washington state, is easily visible on clear days and is close enough to have dusted the city with volcanic ash after its eruption on May 18, 1980.
The city's increased presence within the cultural lexicon has established it as a popular city for young people, and it was second only to Louisville, Kentucky as one of the cities to attract and retain the highest number of college-educated people in the United States. According to a 2017 survey, several of these faults were characterized as "probably more of a hazard" than the Cascadia subduction zone due to their proximities to population centers, with the potential of producing magnitude 7 earthquakes.