BY W. H. BRYAX, B.SC. J 43 



later — in 1899 — the Geological Survey of Queensland 

 published a map of the "' Ipswich Beds, showing their 

 junction wdth the Gympie Beds along the Brisbane River." i 

 This map accompanied a report on the Ipswich Coal Field 

 by Walter E. Cameron, B.A.. and included in its scope the 

 area under discussion. 



iii. — Physiography. 

 The chief physiographical and topographical features of 

 the area are shown in the accompanying sketch-map 

 (Plate XII.). The dominating elements are two ranges 

 ot hills roughly about seven hundred feet in height which 

 rise abruptly out of the surrounding foot-hills. These are 

 known as Taylor Range and Enoggera Range. 



Taylor Range, starting from Mt. Cootha (746ft.), runs 

 in a direction N. 60° W., through Mt. Constitution (844ft.) 

 — the highest point of the range — towards the Enoggera 

 Reservoir. At Mirror Point, in the north-western corner 

 of Mt. Cootha Reserve, it bifurcates, one branch swinging 

 round to the north-east towards the Enoggera Range, 

 from which it is separated by a very marked depression — 

 known locally as The Gap — through Avhich flows Enoggera 

 Creek. The other arm, which is a considerably more 

 important divide, sweeps round to the south of the Enoggera 

 Reservoir until it runs almost due east and west, when it 

 becomes a spur of the D'Aguilar Range. It thus forms the 

 •divide between the waters of Moggill Creek on the south 

 -and those of Enoggera Creek on the north. 



The Enoggera Range, which lies to the north of Taylor 

 Range, forms an open curve concave to the east, with its 

 highest point Mt. Enoggera (1.000ft.) near the middle of 

 the curve. This range, too. is connected to the D'Aguilar 

 Range by a long ridge, which, in this case, has a west-north- 

 west direction, and passes to the north of the Enoggera 

 Reservoir, thus forming the divide between Cedar Creek 

 (which is a tributary of Kedron Brook) and Enoggera Creek. 

 This latter creek flows then betweeen two almost parallel 

 spurs, and it is just above the point where these begin to 



1. W. E. Cameron, Qld. Geol. Survey, Pub. 147. 



