bris on the slopes below, all of which must have 

 come from heights above, suggest this explana- 

 tion. But to take it as it now is, to stand on this 

 crumbling peak to-day and look down upon the 

 lakes, moraines, polished gorges, all the vast 

 and varied glacial works and ruins, is for the 

 geological student startling and profoundly elo- 

 quent. 



Above the altitude of thirteen thousand feet 

 are many fields of "eternal snow," and a dozen 

 miles to the south of Long's Peak is the Arapa- 

 hoe Glacier ; while northward are the Andrews, 

 Sprague, and Hallett Glaciers within ten miles. 

 Though all these are small, each exhibits in a 

 striking manner the Ice Age in a nutshell. On 

 the east side of Long's Peak, too, is a moving 

 ice-field that might well be classed as a glacier. 

 By this ice begins the upper extent of the Mills 

 Moraine, and in the gorge just below one of 

 the most utterly wild places on the earth is 

 Chasm Lake. 



Most of the glacier lakes are in gorges or on 

 terraces between the altitudes of eleven thou- 

 sand and twelve thousand feet. Almost all have 



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