105 



Fig. 23. A "Gnli"' of Lost river above its outlet at Orangeville. Tlie watei' 

 rises to tlio surface at tlie right of tlie middleground of tlic picture and liows 

 to tiae riglit and left, forming two streams, for a very sliort distance wliich sink 

 and finally rejoin the subterranean channel. The little pond on the left side of the 

 liicture is one of the places where the water sinks. Just above the heads of the 

 group in the middle background is a large cave, one of the abandoned subterranean 

 channels of the river. The second, or present channel is considerably below the 

 water shown in the foreground. I-Iere a large area has collapsed blocking the lower 

 channel and forcing the water to the surface, when it again finds new channels 

 around or through the obstruelion to its main channel again in which it continues. 



