of River Lethe, extends NW from Mount Mageik, on Alaska Peninsula, in Katmai National Monument, 10 mi. W of Mount Katmai, Aleutian Range
Discovered and named July 31, 1916 by R. F. Griggs and L. G. Folsum, members of the National Geographic Society Katmai Expedition. Griggs wrote, "The whole valley as far as the eye could reach was full of hundreds, no thousands-literally, tens of thousands-of smokes curling up from its fissured floor." By 1950, the number of smokes had dwindled to fewer than 100. Most of the original smokes are now extinct and the valley is becoming a "valley of evolution," as hardy pioneer plants struggle to re-establish a floral mantle over nearly sterile ground.
Baked Mountain, Mount Cerberus, Falling Mountain, Mount Ikagluik, Mount Katolinat, Mount La Gorce, Mount Mageik,
Mountain Passes:Mountain Ranges:Rivers:River Lethe, Savonoski River, Ukak River,
Streams:Ikagluik Creek, Knife Creek, Margot Creek, Windy Creek,
Valleys: