Oregon topographic maps

The Willamette River drains a region of 11,478 square miles (29,730 km2), which is 12 percent of the total area of Oregon. Bounded by the Coast Range to the west and the Cascade Range to the east, the river basin is about 180 miles (290 km) long and 100 miles (160 km) wide. Elevations within the watershed…

Average elevation: 236 ft

Average elevation: 4,626 ft

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Average elevation: 1,903 ft

Average elevation: 5,285 ft

Average elevation: 558 ft

Wilsonville is located on the southern edge of the Portland metropolitan area sitting at an elevation of 154 feet (47 m) above sea level. Primarily in the southwestern part of Clackamas County, the northern section is in Washington County. It is located on the north side of the Willamette River around where…

Average elevation: 197 ft

Average elevation: 1,483 ft

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Average elevation: 636 ft

Average elevation: 2,411 ft

Average elevation: 6,138 ft

Average elevation: 2,703 ft

Average elevation: 36 ft

The primary purpose of the dam is flood control and is operated in conjunction with Applegate Dam to regulate water flows down the river as well as to impound water for summer use. The dam is an earthfill structure with a gated spillway and contains two hydroelectric generating units with a total capacity of…

Average elevation: 2,392 ft

Average elevation: 200 ft

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Average elevation: 2,195 ft

Average elevation: 394 ft

Average elevation: 69 ft

Average elevation: 2,661 ft

Pittsburg is an unincorporated community in Columbia County, Oregon, United States. Pittsburg is located on the Nehalem River near its confluence with the East Fork Nehalem River. The Scappoose-Vernonia road and the St. Helens-Pittsburg road join Oregon Route 47 near Pittsburg. Pittsburg's elevation is 584…

Average elevation: 764 ft

Average elevation: 2,011 ft

Average elevation: 1,555 ft

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Average elevation: 1,362 ft

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Average elevation: 823 ft

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Average elevation: 3,648 ft

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Average elevation: 69 ft

Average elevation: 1,647 ft

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Average elevation: 669 ft

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Average elevation: 2,333 ft

Average elevation: 1,667 ft

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Average elevation: 144 ft

Average elevation: 564 ft

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Average elevation: 600 ft

Average elevation: 971 ft

Average elevation: 6,194 ft

Average elevation: 1,562 ft

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Average elevation: 541 ft

Average elevation: 177 ft

Average elevation: 95 ft

Average elevation: 1,047 ft

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Average elevation: 2,707 ft

Average elevation: 843 ft

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Average elevation: 203 ft

Average elevation: 2,333 ft

Average elevation: 4,364 ft

Average elevation: 1,289 ft

Average elevation: 728 ft

Average elevation: 407 ft

Average elevation: 633 ft