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the gravels in the pothole, and far in excess of anything 
required by the volume of water to be removed. 
On the long route, after leaving the main cave and de- 
scending to the “ deserted chambers,” a second descent leads 
to the third series of caves, also dry in the present age. 
Presently the track sounds hollow, and at places, openings 
in the floor reveal a fourth series of chambers. Descending 
to these, one reaches the level of medium high-water mark 
A descent of over 30 feet brought us to the water, which on 
1st of November, after the protracted drought, was about 
300 feet below the Hotel by my aneroid, or 24 feet above 
Green River. Here then is reached a cave that is still in 
use, and the roof shows that these caverns are often quite 
filled with water. 
After crossing several pools, the Echo River is reached, 
showing a slight current on its surface. The depth of this 
stream varies from 5 to 10 feet, and its width is from 20 to 
200 feet, but probably the deeper parts are nearly still pools. 
Rowing along this for three quarters of a mile, avenues are 
next traversed which for a long distance show the mechani- 
cal and chemical erosions of the water-flow, and chambers 
are reached where the roofs and sides are covered with 
florescent formations of gypsum, the long fibrous bunches of 
crystal curving outwards from some centre, forming delicate 
rosettes from 1 to G inches in diameter, and as beautiful as 
flower-like sea anemones ; but, unfettered by the bonds of 
species, every variety of form appears, white, yellow, or 
black, and all adorned with glittering crystals. 
At last, after a scramble over debris (called “ the Rocky 
Mountains,”) which has piled up to a height of 200 feet above 
