Physloijra/ilii/ o/' the MaiLsJieLd Didrict. 393 



upper King River on the east, and are in places over 3000 feet in 

 height. Northerly, they slope to the Murray plains, and, on the 

 south, end suddenly in a fairly well defined fault scarp. In the 

 centre of the wide lower cai-boniferous valley of Mansfield arises 

 Mt. Battery (1760 ft.j and Mt. Terry. This country is all settled, 

 and utilised for dairying and grazing. 



Bounding the Mansfield valley, and running N.W.-S.E., is the 

 South Blue Range, with its continuation, the Quartzite Ridge. 

 Further south is the dissected silurian peneplain. 



To the East of Mansfield there is a magnificent mountain skyline, 

 including " Graves' Country " (Bainbridge Range), Mt. Buller 

 (o911 ft.), and Mt. Timl)ertop. or Warrambat (4230 ft.). 



2. — Detailed Accounts. 



(a) Tolmie Highlands. — This interesting group is apparently a 

 residual tableland of an average height of over 2000 ft. In the 

 south it is in a youthful stage of dissection. In the west, Mt. 

 Samaria and the North Blue Range are of intensely folded and 

 hardened silurian slates, largely intruded by granitic rocks. The 



BflSflLT 

 "HILLTOPS' 



Fig. 6. — Diagrauuuatic section throu^^h the Southern part of Tolmie 

 Hii^h lands. 



southern portion is mainly of level-l)cdded purple Battery mud- 

 stones and sandstones. To the north, it is mapped as dacite and 

 porphyry, while conglomerates and sandstones occur again on the 

 East. Volcanic rocks, apparently of both older and newer series, 

 also occur. 



The southfi-n boundary of these highlands has been referred to 

 as a fault line. The evidence may be summed up as follows : — 



(i.) Slickensided idcks occur, but not abundantly. 



(ii.) The ascent fiom the comparatively low country about Mans- 

 geld to Tolmie is very steep, rising over 1600 ft. in four miles by 

 the best road. 



(iii.) The nature of tlie denudation on the two sides of the Broken 

 River presents an extreme contrast. 



