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Map of hazards from the Three Sisters showing risk of lava flows and lahars in the immediate area. Neither North nor Middle Sister is likely to resume volcanic activity. [60] An eruption from South Sister would pose a threat to nearby life, as the proximal danger zone extends 1.2 to 6.2 mi (2 to 10 km) from the volcano's summits. [69]
The Calapooya Mountains in Lane County Mount Thielsen in the Cascade Range in southern Oregon The Pueblo Mountains south of Fields Trout Creek Mountains, Southeastern Oregon The Wallowa Mountains in northeastern Oregon. There are at least 50 named mountain ranges in the U.S. state of Oregon.
Mount Hood is the highest summit of the U.S. State of Oregon. This article comprises three sortable tables of major mountain peaks [1] of the U.S. State of Oregon. The summit of a mountain or hill may be measured in three principal ways: The topographic elevation of a summit measures the height of the summit above a geodetic sea level.
The Three Sisters, the city's namesake mountains. Sisters is the headquarters of the Sisters District of the Deschutes National Forest. The Sisters Ranger District Office is located at Pine Street and Highway 20. [18] Hiking, biking and horse riding trails go from the city limits into the Three Sisters Wilderness.
Eleven of the thirteen volcanoes in the Cascade Range have erupted at least once in the past 4,000 years, and seven have done so in just the past 200 years. [21] The Cascade volcanoes have had more than 100 eruptions over the past few thousand years, many of them explosive eruptions . [ 21 ]
Sister State Park was established in 1939. The park was named for the adjacent town of Sisters. The town of Sisters takes its name from the Three Sisters, three large volcanic mountains located in the Cascade Range overlooking the community. [2] [3] [4] The original 41 acres (17 ha) on the outskirts of Sisters was purchased by Louis W. Hill for ...
The Three Sisters Wilderness is a wilderness area in the Cascade Range, within the Willamette and Deschutes National Forests in Oregon, United States. It comprises 286,708 acres (1,160.27 km 2 ), making it the second largest wilderness area in Oregon, after the Eagle Cap Wilderness .
Santiam Pass is a 4,817-foot (1,468 m) mountain pass in the Cascade Range in central Oregon in the United States.It is located on the border between Linn and Jefferson counties, about 18 mi (29 km) northwest of Sisters, between the prominent volcanic horns of Three Fingered Jack to the north and Mount Washington to the south.