Physiography of the Glenelg R 



iver. 



Ill 



converging towards the Hummocks. Passing through the latter hill 

 in two narrow gorges, they junction, and flow into the Glenelg 

 near the " Retreat " homestead. Since the work done by the 

 survey party was largely in their basins, they were more closely 



REFERENCE 



3 Hard^mountain outliers. Carboniferous sandstone. 

 ^^ Soft Jurassic mudstone. 

 I I Tertiary and Alluvial. 

 Y//jj\ Wide level Basalt flows- The basalt at + 



^•^v. 



probably extended much further i^est. 

 Probable original course of Rivers. 



Note wide swampy course xyf Wcmituttv xU A; aC B^C 

 Ihc iH^kr ^fivWs iri/ Aieep,.WUl ^estaSW^hed \kiU€y^. 



Fig. 3. — Geological plan to illustrate more clearly the effect of the lava 

 sheet in determining the present course of the Wannon. The 

 carboniferous sandstones are here referred to as " outliers," in 

 respect to the very ancient underlying bed-rock, which is covered 

 by a thin layer of marine tertiary and recent alluvial material. 



observed than other similar tributaries of the Glenelg. The name 

 Wando was given by Mitchell, who appears to have elicited it 

 from an aboriginal female whom he interrogated there. The 



