Sand Ridges in Western Australia. 



418 



The occurrence of a smooth, unbroken, sloping plain of sand, 

 which has been formed by wind action, is important as probably 

 throwing light on the occurrence of sand plains elsewhere in sub- 

 :arid Western Australia. 



The Chief Physical Features of the District. 



(1) To the east of the township there is a belt of " high " lands 

 which has two main divisions, as follow : — (a) A north-north-west- 

 trending belt which has been dissected into various ridges of 



£xPLAA/AT/OAf 



A/\ Lat£ritc 1 DtssccTco I ' | ' Sands, (Sano Rioccs ••• Sand RiDce 



X X CnEiCNsroMEi ) ///CH Lands I ! I | ^^^ Sano Plains) — — — Rocf( RiDC£S 



Fig. 1. — Physiographic Map of Comet Vale. Note. — A belt of alhiviuin occurs 

 aloii*^ the floor of the Blue Speck Creek valley. This has not l>een 

 shown on the map. 



