Physiography of the Mansfield District. 



39: 



describes the extremely resistant nature of the rucks at this point. 

 It appears impossible that the small Broken Hiver carved this valley. 

 As has already been mentioned, it is not nidikely this feature once- 

 formed the outlet of the northward-flowing Goulbuin. 



STPkflrHBOC-(G Rfl. 





d 



Viff. 10. — Barjaro- Gap as seen from the South. 



(h) "Potter's Lookout." — The diagram (Fig. 11) indicates a 

 phase of the physiography of the upper King River. For several 

 miles the coarse, level-bedded conglomerates cap the tableland. 

 The conglomerate is traversed by joint planes, and it is due to the 

 widening of one stich crack that we have the rugged scenic effects 

 of '' Power's Lookout." 



POWEPv'S LOOK-OUT 



Fig. 11. — Erosion of King's Valley at Power's Lookout. 



(c) Junction of Delatite and Goulhurn. — A survey has recently 

 been conducted by the Water Supply Department with a view to 

 constructing a weir at the Sugarloaf. below the junction of the 

 Delatite and Goulburn. By the courtesy of Mr. R. Comer, who- 

 was in charge of the survey party. I have been supplied with much 

 valual)le information bearing on the probable history of the Goul- 

 burn. The survey records show that of the two streams at the junc- 

 tion, the more northerly was originally the stronger stream, 

 which is consistent with Fig. 15. Large deposits of alluvium have 

 been proved to occur here also. The gap through which the 

 river flows is very narrow, and V-shaped, the sides sloping up 

 practically 1 in 1. to well over 1000 feet on either side. The plans 

 also show indications that the GoulVjurn originally flowed northward 

 through Brack's Gap. 



