August, 1955 Evers: Hitt Prairies or ILLINOIS 411 
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Fig. 26.—The cliff at the Columbia (Solvay) Quarry, north of Prairie du Rocher. The 
Phegley hill prairie occupies the slopes above this cliff. The spurs and coves shown in fig, 27 
are located above the cliff near the right edge of the picture. Sampson prairie is to the north 
(left) of Phegley prairie. 
Fig. 27. 
visible in extreme lower left corner, a larger one near center of picture between two large 
spurs, which are plainly visible. 
A part of the Phegley hill prairie north of Prairie du Rocher. A small cove is 
