BY II. I. JENSEN. 



79 



portions of the D'Aguilar Range, the old coast-line, have become 

 a low watershed (from 600 to 800 feet high). A brief space of 

 geological time will probably see the drainage of a part of this 

 district rediverted into the Caboolture River through the cutting 

 back by Wararha Creek. (See Plate v., and Text figs. 2-3). 



A spur of Mt. Mee known as Fife's Range (1,400 feet) surrounds 

 the mountain valley known as Delaney's Creek (Plate vi.). 



Many other mountains rise out of the plain, e.g., the Mt. 

 Archer group (about 1,700 feet), Mary Smokes Mountain, Mt. 

 McConnell, <fcc. These are ' mesas ' or ' buttes,' which through 

 excessive hardness resisted denudation to base-level, and are 

 composed of rhyolite, porphyry and hard metamoiphic rock. 

 Mt. Mee itself is of similar nature, its hard metamorphic rocks 

 having preserved it from base-levelling on the east, and the 

 equally hard volcanic rocks of Mt. Byron and Mt. Archer on the 

 west. 



(d) The Blacked! Range — This range commences a little to the 

 north-west of Mt. Mellum and constitutes, in reality, a broad 

 tableland from 1,200 to 1,750 feet high, known as Maleny. On 



Fig. 4. -Section from Peachester to the Bottle and Glass, along O P on Plate v. 



the eastern side it has a steep declivity towards the coastal area, 

 frequently marked with precipices of several hundred feet. On 

 the western side the declivity to the Mary River Valley is even 

 steeper and precipices more frequent. The Maleny Tableland 

 (Text fig. 4) is basaltic and the cliffs referred to are composed of 

 columnar basalt. Dense scrub once covered the whole area. The 

 basalt variously overlies sandstone and rhyolite. The latter rock 



