Physiography of Werribee Area. 



195 



it lies. Several important volcanic cones, hoAvever, rise above this 

 general level, and gain their inipressiveness from the elevations on 

 which they stand. First in importance is the dominating cone of 

 Mt. Blackwood (2432 feet), standing on the south-eastern edge of 

 the lifted block A. Mounts BuUengarook (2207 feet), and Gisborne 

 (2105 feet), stand likewise on the high ridge of Block D. The most 

 important height near the Main Divide is also volcanic ; iti is called 

 Wuid Kruirk (more popularly Blue Mountain, 2800 feet), and is 

 practically on the Divide. Two large masses, the Anakies (1350 feet) 

 and the You Yangs (1134 feet), are on the lowest block, E. The 

 You Yangs is a fine monadnock of granite, which still rises high 

 above the lava flows of the plain ; while the Anakies are partly 

 granite, accompanied and dominated by a chain of high volcanic 

 vcones. 



tiltili'MK^m IMh ullL Hif'lli' I M((/( f h- .//ft 



Fig. 3. — ^Block diagram of the area, looking from the south-east, to 

 show relative positions of the main scarps and streams. 



Fig. 3 has been drawn in order to give a rapid visual impression 

 of thesQ five great divisions and their relation to the Werribee and 

 its tributaries. The figure is drawn as if viewed from the south- 

 east. 



