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| | Columbia Encyclopedia- Oregon - AOL Research & Learn (Site not responding. Last check: 2007-10-31) |
 | | Portland, the largest city, whose metropolitan area contains nearly half the state's population, straddles the Willamette near its junction with the Columbia. |
 | | Salem, the capital, and Eugene, the second largest city, lie southward in the valley, which is sealed off in the south by the low range of the Calapooya Mts. |
 | | The Bonneville Dam, in the steep gorge where the Columbia River pierces the Cascades, enables large vessels to travel far inland, and although river traffic is less vital than formerly, the Columbia River cities still serve as transport centers for a vast hinterland to the east. |
| reference.aol.com /columbia/_a/oregon/20051206234309990030 (2041 words) |
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