page_title: List of Cascade Range topics
section_title: High Cascades
hierarchical_section_title: List of Cascade Range topics / Volcanoes / High Cascades
caption_attribution_description: Plumes of steam, gas, and ash often occurred at Mount St. Helens in the early 1980s. On clear days they could be seen from Portland, Oregon, 50&#160;mi (80&#160;km) to the south. The plume photographed here rose nearly 3,000&#160;ft (910&#160;m) above the volcano's rim. The view is from Harrys Ridge, 5&#160;mi (8&#160;km) north of the mountain.
context_section_description: Mount Rainier (southeast of Tacoma, Washington) — highest peak in the Cascades, it dominates the surrounding landscape. There is no other higher peak northward until the Yukon-Alaska-BC border apex beyond the Alsek River.
  Mount St. Helens (southern Washington) — Erupted in 1980, leveling forests to the north of the mountain and sending ash across the northwest. The northern part of the mountain was destroyed in the blast (1980 Mount St. Helens eruption).
  Mount Adams (east of Mount St. Helens) — the second highest peak in Washington and third highest in the Cascade Range.
  Mount Hood (northern Oregon) — the highest peak in Oregon and arguably the most frequently climbed major peak in the Cascades.
  Mount Jefferson (northcentral Oregon) — the second highest peak in Oregon.
  Three Fingered Jack (northcentral Oregon) — Highly eroded Pleistocene volcano.
  Mount Washington (between Santiam and McKenzie passes) — a highly eroded shield volcano.
  Three Sisters (near the city of Bend, Oregon) — South Sister is the highest and youngest, with a well-defined crater. Middle Sister is more pyramidal and eroded. North Sister is the oldest and has a crumbling rock pinnacle.
  Broken Top (to the southeast of South Sister) — a highly eroded extinct stratovolcano. Contains Bend and Crook Glaciers.
  Newberry Volcano — isolated caldera with two crater lakes. Very variable lavas. Flows from here have reached the city of Bend.
  Mount Bachelor (near Three Sisters) — a geologically young (less than 15,000 years) shield-to-stratovolcano which is now the site of a popular ski resort. (Mt. Bachelor ski area)
  Diamond Peak (south of Willamette Pass)  — a 8,744 ft (2,665 m) volcano composed of 15 km³ (3.6 cu mi) of basaltic andesite.
  Mount Bailey (north of Mount Mazama)
  Mount Thielsen (east of Mount Bailey) — highly eroded volcano with a prominent spire, making it the Lightning Rod of the Cascades.
  Mount Mazama (southern Oregon) — better known for its Crater Lake, which is a caldera formed by a catastrophic eruption which took out most of the summit roughly 6,900 years ago. Mount Mazama is estimated to have been about 11,000 ft (3,400 m) elevation prior to the blast.
  Mount Scott (southern Oregon) — on the southeastern flank of Crater Lake.  At 8,929 ft (2,722 m) elevation, this small stratovolcano is the highest peak in Crater Lake National Park.
  Mount McLoughlin (near Klamath Falls, Oregon) — presents a symmetrical appearance when viewed from Klamath Lake.
  Medicine Lake Volcano — a shield volcano in northern California which is the largest volcano by volume in the Cascades.
  Mount Shasta (northern California) — second highest peak in the Cascades. Can be seen in the Sacramento Valley as far as 140 mi (230 km) away, as it is a dominating feature of the region.
  Lassen Peak (south of Mount Shasta) — southernmost volcano in the Cascades and the most easily climbed peak in the Cascades. It erupted from 1914 to 1921, and like Mount Shasta, it too can be seen in the Sacramento Valley, up to 120 mi (190 km) away. Lowest Peak because the Cascades extend from it.
caption: 1982 minor eruption of Mount St. Helens
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