NERBUDDA DISTRICT. 



265 



The sketch here given {Fig. 23) represents the aspect of the great 

 Puchmurri escarpment as seen from a hill south of it. The observer 



Fig. 23. View of the escarpment of the Puchmurri range, seen from the south. 



VMIUM\ 



stands on a bed of Mahadeva sandstone like that of the rocky precipice 



opposite to him, and probably a continuation of it ; but on descending, he 



, ., ,, ■„ will find the flags and shales of the lower Damuda 



Proved by the valleys ° 



of the Gondwara range. rocks, exposed in the deep gorge across which he 

 is looking. This is a typical case; most of the glens of the upper Deinwa 

 drainage afford similar examples, which also constantly recur in those of 

 the Tawa tributaries (see map.) The tabular masses of the Mahadeva 

 sandstone have been cut through, and in almost all these gorges, expose 

 the older rock below. The valley of the Tawa itself affords an instance 

 of the same thing on a larger scale. It can hardly be doubted that the 

 tabular sandstone of Gidundeo, Asseer, and Jamghur (see map) was once 

 all continuous, covering to a great thickness all the present Tawa valley, 

 and forming part of the mass lying to the north in the prolongation of the 



