Four years later when National Geographic Society sent Robert F. Griggs for a cover story, he found the valley engulfed in superheated steam escaping from thousands of fissures and cracks. The incredible sight prompted him to name the once vibrant valley “the Valley of Ten Thousand Smokes.”
Now a hundred years later, most of the fumaroles are extinct and the valley is no longer filled with smoke, but signs of volcanic activity are still visible on nearby hills. The region has been so scarred that in the 1960s it was used in training U.S. astronauts for moon landings. Novarupta itself is a mere bump on the Valley’s floor and rises only 65 meters above its surface. When explorers first entered the Valley, this was one of the hottest areas and the dome still wafts warm steam.
During the eruption a large amount of magma was drained from magma chambers below resulting in the collapse of the summit of another volcano - Mount Katmai, about 10 km away from Novarupta. The collapse produced a crater about two miles in diameter and over 800 feet deep. Early investigators assumed that Katmai was responsible for the eruption. It was not until the 1950s that true source of the eruption was discovered.
Today you can take the trip from Brooks Camp out to the Valley of Ten Thousand Smokes, where the turbulent Ukak River and its tributaries have cut deep gorges in the accumulated ash. The region is still recovering and plants have began to grow on the valley floor. The valley is not yet able to unable to sustain animal life, but moose and bear may cross it from time to time.
Griggs fry bacon over a hot opening of the Valley of Ten Thousand Smokes, 1916
The lava dome of Novarupta today.
Katmai National Park and Preserve, Alaska. Cross section of the June 1912 ash flow exposed by the River Lethe in the Valley of Ten Thousand Smokes.