"Three Sisters Wilderness Map" by Geo-Graphics, available at outdoor stores and ranger stations. Route: Douglas Lorain includes a description of the Three Sisters loop in his "Backpacking Oregon ...

Linton Lake is one of those places where the things that make it special aren’t immediately obvious. Here's why it's worth ...

Three Sisters loop: Oregon's best backpack trip without back tracking (much) Updated: Jun. 29, 2014, 11:30 a.m. ... Three Sisters loop This is a wilderness trip.

The central Oregon Cascades are one of volcanologist Erik Klemetti's favorite places on the planet. Not only are they incredibly picturesque, but they also host a multitude of volcanic features.

BEND, Ore. — Climbing to the summit of Oregon’s third-tallest peak is supposed to be a wilderness experience, as the South Sister Climber Trail is located in the Three Sisters Wilderness.

A trio of Oregon backpackers planned to clean up trash at three alpine lakes in the Three Sisters Wilderness, but had to evacuate due to wildfires ...

Interferogram image made from InSAR monitoring, showing 1995-2001 ground uplift in the Three Sisters. Courtesy USGS “We believe that the magma is rising about four miles below the surface.

SUNRIVER, Ore. — Smokejumpers are working to put out a human-caused fire burning near Moraine Lake in the Three Sisters wilderness. Incident 513 is burning at the junction of the South Sister ...

According to the USGS, Oregon and Washington, with more than 25 active volcanoes, comprise one of the most volcanically active regions in the country. The uplift in the Three Sisters area is most ...