Willamette National Forest
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The Willamette National Forest is a National Forest located in the central portion of the Cascade Range of the U.S. state of Oregon. It comprises 1,678,031 acres. Over 380,000 acres are designated wil
The Breitenbush River in Willamette National Forest
Helicopter carrying timber along the Breitenbush River in the Willamette National Forest
Old-growth forest in the Opal Creek Wilderness
Lane Transit District bus passes the McKenzie River Ranger Station sign
Three Sisters (Oregon)
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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 south
Willamette National Forest
…Mount Jefferson, Oregon's second-highest peak. Seven major peaks of the Cascades—Mount Jefferson, Mount Washington, Three Fingered Jack, Diamond Peak, North, Middle and South Sisters—as well as numerous high mountain lakes are within these wilderness areas. The McKenzie and the North Fork Middle Fork Willamette River are part of the…
The Three Sisters, looking north
Aerial view over the Three Sisters Wilderness, showing Middle Sister (left) and South Sister
Carver Lake is dammed by a glacial moraine and could produce a dangerous lahar.
Rock Mesa is an example of a rhyolite dome near the Three Sisters. South Sister rises in the background.