Carte topographique Coos County

As of January 2020, Beaverton covers a total area of 19.7 square miles (51 km2), all of it land except for small creeks, ponds, and lakes. The city is located along the eastern edge of the Tualatin Valley just west of the Tualatin Mountains. It is bordered by Portland to the east, Hillsboro to the west, and…

Altitude moyenne : 106 m

Altitude moyenne : 22 m

Altitude moyenne : 1 281 m

The lake is 5 by 6 miles (8.0 by 9.7 km) across, with a caldera rim ranging in elevation from 7,000 to 8,000 feet (2,100 to 2,400 m) and an average lake depth of 1,148 feet (350 m). The lake's maximum depth has been measured at 1,949 feet (594 m), which fluctuates slightly as the weather changes. On the basis…

Altitude moyenne : 1 971 m

Annual snowfall in Portland is 4.3 inches (10.9 cm), which usually falls between December and March. The city of Portland avoids snow more frequently than its suburbs, due in part to its low elevation and the urban heat island effect. Neighborhoods outside of the downtown core, especially in slightly higher…

Altitude moyenne : 77 m

Altitude moyenne : 1 347 m

Solidified lava from Grande Ronde members of the Columbia River Basalt Group underlie Forest Park. About 16 million years ago during the Middle Miocene, the Columbia River ran through a lowland south of its modern channel. Eruptions from linear vents in eastern Oregon and Washington flowed down this channel…

Altitude moyenne : 91 m

Temperatures for the year as a whole are slightly cooler than in most other low-elevation towns in the region, especially at night because of air drainage off the surrounding mountains.

Altitude moyenne : 112 m

Altitude moyenne : 27 m

Altitude moyenne : 1 155 m

Altitude moyenne : 146 m

Altitude moyenne : 99 m

Altitude moyenne : 79 m

Altitude moyenne : 83 m

Altitude moyenne : 1 389 m

According to the United States Census Bureau, the city has a total area of 20.66 square miles (53.51 km2), of which 19.81 square miles (51.31 km2) is land and 0.85 square miles (2.20 km2) is water. The elevation is 4,094 feet (1,248 m).

Altitude moyenne : 1 312 m

Altitude moyenne : 165 m

The Lower Crooked Wild and Scenic River flows through 2,300 acres (930 ha) of public lands overseen by the Bureau of Land Management and 220 acres (89 ha) overseen by the Bureau of Reclamation. The Chimney Rock segment below Bowman Dam has nine developed campsites, seven of which are meant for single-family…

Altitude moyenne : 1 131 m

Though much of Gresham is relatively flat, it is characterized by a hill on its eastern border. Northeast Gresham is also hilly, particularly where the city meets Troutdale toward the Columbia River. Its elevation is 325 feet (99 m). Johnson Creek, which begins at the foothills of the Cascade Mountains, runs…

Altitude moyenne : 90 m

Altitude moyenne : 1 251 m

The Deschutes River runs through Bend, where it is dammed to form Mirror Pond. Bend's elevation is 3,623 feet (1,104 metres) above sea level. The city has a total area of 33.27 square miles (86.17 square kilometres), of which 33.01 sq mi (85.50 km2) is land and 0.26 sq mi (0.67 km2) is water.

Altitude moyenne : 1 121 m

Altitude moyenne : 127 m

Altitude moyenne : 886 m

Altitude moyenne : 811 m

There is one trail to the summit of Mount Scott. Starting on Rim Drive, the trail is about 2.5 miles (4.0 km) long. It has many switchbacks, and ends at the fire lookout tower on the summit. The trailhead is at an elevation of 7,683 feet (2,342 m), and the trail climbs approximately 1,479 feet (451 m) to the…

Altitude moyenne : 2 295 m

Altitude moyenne : 441 m

Altitude moyenne : 1 499 m

Altitude moyenne : 218 m

Altitude moyenne : 213 m

Altitude moyenne : 2 355 m

Altitude moyenne : 422 m

Altitude moyenne : 138 m

Altitude moyenne : 376 m

The Three Sisters are closely spaced volcanic peaks in the U.S. state of Oregon. They are part of the Cascade Volcanic Arc, a segment of the Cascade Range in western North America extending from southern British Columbia through Washington and Oregon to Northern California. Each more than 10,000 feet (3,000 m)…

Altitude moyenne : 2 526 m

Altitude moyenne : 277 m

Altitude moyenne : 587 m

Altitude moyenne : 48 m

Altitude moyenne : 160 m

Altitude moyenne : 149 m

Altitude moyenne : 598 m

According to the United States Census Bureau, the city has a total area of 43.74 square miles (113.29 km2), of which 43.72 square miles (113.23 km2) is land and 0.02 square miles (0.05 km2) is water. Eugene is at an elevation of 426 feet (130 m).

Altitude moyenne : 163 m

Altitude moyenne : 55 m

Timberline Lodge is a National Historic Landmark located on the southern flank of Mount Hood just below Palmer Glacier, with an elevation of about 6,000 ft (1,800 m).

Altitude moyenne : 2 716 m

Altitude moyenne : 1 467 m

The United States Census Bureau reports the city has a total area of 21.6 sq mi (55.9 km2), all of which is land. In 2013, Hillsboro itself reported an area of 23.88 sq mi (61.8 km2), equivalent to 15,283 acres (61.8 km2). The city is located in the Tualatin Valley, and the Tualatin River forms part of the…

Altitude moyenne : 53 m

Altitude moyenne : 107 m

Altitude moyenne : 1 453 m

Altitude moyenne : 56 m

Altitude moyenne : 5 m

Altitude moyenne : 135 m