THE MAMMOTH CAVE 127 
named in honor of Professor Cleveland, the 
distinguished mineralogist. 
At the termination of Cleveland’s Cabinet we 
arrive at the base of the Rocky Mountain. This 
mountain is one hundred feet high, and is en- 
tirely formed of rocks that have fallen from 
above. On the top of the Rocky Mountain there 
is a stalagmite two feet high and six inches in 
diameter, termed Cleopatra’s Needle. 
On the farther side of the Rocky Mountain is 
a gorge seventy feet deep and one hundred feet 
wide, termed Dismal Hollow. The Cave at the 
Mountain divides into three branches. That to 
the right leads to Sandstone Dome, which is in- 
teresting from the fact that the stone of which it 
is composed indicates that the top of the Dome 
is near the surface of the earth. The branch to 
the left communicates with Crogan’s Hall.* The 
central one is termed Franklin Avenue, and ex- 
tends from Dismal Hollow to Serena’s Arbor. 
Franklin Avenue, as before stated, extends 
from Dismal Hollow to Serena’s Arbor, a dis- 
tance of a quarter of a mile. It varies in width 
from thirty to sixty feet; it has a wild and 
gloomy appearance. | 
* Named for Dr. Crogan, a former proprietor of the Cave,— 
improperly spelled Grogan by Dr. Wright. 
