112 



BOOK OF A HUNDRED BEARS 



ture land seared and burned by noxious gases and 

 poisonous waters. As you cross the Firehole, you 



reach the 

 greatest gey- 

 ser in the 

 world, the 

 Excelsior . 

 One eruption 

 of this gey- 

 ser, in 1888, 



■■■^ level of the 



HHP" Firehole 



River, a con- 



si der a ble 



stream, six 



inches. It 



has been in- 



active since; 



but its great 



EXCELSIOR GEYSER basin, three 



hundred feet across, boils and grumbles and 



threatens. No one knows when it will break forth 



