The eruptions of Mount Redoubt in Alaska caused a series of large lahars, or volcanic mudflows, streaming down the Drift River valley and into Cook Inlet. This NASA photograph, taken April 4, 2009 by NASA’s Earth Observing-1 satellite, shows the ash-filled lahar carving wide channels into the snowy banks of the Drift River and nearly engulfing the Drift River Oil Terminal.

Image 1 | Image 2 | Image 3 | Image 4 | Image 5 | Image 6 | Image 7 | Image 8 | Image 9 | Image 10 | Image 11 | Image 12