45 



Peak and Broken Mountain. A small portion might pass over the 

 divide at Novarupta and run down between Falling Mountain and 

 Baked Mountain. But as a matter of fact the quantity of flow material 



THE VALLEY OF TEN^ THOUSAND SMOKES 



FROM A SURVEY BYTHE KATMAI EXPEDITIONS 

 OF THE NATIONAL GEOGRAPHIC SOCIETY 



ROBERT F 6RIS6S. DIRECTOR 



< HUU %0UL>tf10W AMD TOaD6»APKV BT C.K MAVIMAO 



Edge of mud flows. rtivi- ».----• 

 Certain defpfiitefy locat**^ hjn^eo^eA . U>us» • 

 Contovjr intervaf& 20D ft 



Mt. Katmai and the Valley of Ten Thousand Smokes since the eruption. 

 Compare Mt. Katmai with the map on page 43. The contours show that it 

 would be impossible for a liquid flowing under gravity from top of Katmai 

 volcano to reach the head of Mageik Creek via Katmai Pass. 



in the Valley leading away from the base of Katmai appears 

 markedly less than that in the main arm of the Valley of Ten 

 Thousand Smokes ten kilometers across the mountains from Katmai. 

 No liquid starting from the summit of Katmai and seeking its level 

 under gravity could possibly reach the summit of Katmai Pass. 

 It is believed that the map on this page demonstrates this point 



