Long-quiet volcanoes in the Cascades region of the Pacific Northwest are still underpinned by large reservoirs of magma, new ...

Moon rise at sunset over the Three Sisters mountains—part of the Cascade volcanoes—at Scott Lake, ... [+] Oregon. The granite clump was found using microwave-wavelength readings from antennae ...

There are in fact about 460 volcanoes in the Three Sisters region, ensuring there is plenty to see for visitors. To get an even closer look to the mountains, summers are a good time for some ...

They detected these reservoirs below Mount Rainier, Mount St. Helens, Mount Hood, Newberry Volcano, Crater Lake and Lassen Peak. Three Sisters and Mount Shasta did not show similar patterns ...