HISTORICAL AND OTHERWISE 95 



Rock uptilted and stratified — Miocene, Pliocene, 

 and all the other 'cenes — Devonian, Red Silurian, 

 and all the rest. Then came along the glacial 

 period and planed and trimmed things. And, last 

 of all, the internal fires began to get busy. Out 

 of a thousand vents they vomited forth lava — the 

 rhyolite formation that, today, distinguishes the 

 whole region. And these vast flows filled the val- 

 leys, leveled the hills, and gave us those long, 

 suave slopes, those soft contours, those gracious 

 undulations, that so surprise you as you travel 

 over the Park. 



''And so the old dim years of long ago 

 Went by with fire and ice and fire and snow." 



And so, today, as you wander through the Park, 

 you are surprised by fields that look like the 

 Mohawk Valley in New York, hke the lower slopes 

 of the Blue Ridge in Pennsylvania, and in 

 Tennessee.. At every turn you look to see a log 

 farmhouse or a ''Cuppin." 



Nature has not yet spent herself. She still 

 reserves her marvels for daily view. You may 

 see there a world in the making. New volcanoes 



