A lenticular cloud forms like a huge UFO over Vent Mountain, Aniakchak Volcano, 2012.
Lava field, Trident Volcano, Valley of 10,000 Smokes, 2011.
Small erratic, Breezy Cone and Windy Cone, Aniakchak Volcano, 2014.
Looking northwest at a terminal moraine and an extinct fumarole (foreground) on the volcanic sands of the vast central ignimbrite sheet, Valley of 10,000 Smokes, 2000.
An extinct fumarole with three pumice stones and wind overhead, Valley of 10,000 Smokes, 2000.
Lava flows enter the southern shore of Surprise Lake, with The Gates (upper left), the V-shaped opening in the crater wall, and Black Nose (high peak), another prominent feature on the crater rim of Aniakchak Volcano, 2012.
The Gates, with wind entering the crater from the northeast, 2014.
. A dry wash in the Knife Creek drainage, with a small crevasse-like crack in the dry stream bed, Valley of 10,000 Smokes, 2004.
A dry canyon, central ignimbrite sheet, Knife Creek drainage, Valley of 10,000 Smokes, 2000.
. The southeastern wall and lake of Katmai Crater, as seen from beneath the crater’s western rim, Valley of 10,000 Smokes, 2004.
Dome of Novarupta Volcano, as seen from the south, Valley of 10,000 Smokes, 2000.
The author’s campsite near a snowfield inside Aniakchak Volcano’s crater, with Black Nose (high peak) and The Gates (upper left) in the background, 2012.
