BY ROBERT C. RINGROSE. 57 



traced along the surface on the higher side of the lease, running 

 in a nearly north and south direction. 



Crossing this lease in a northerly direction on to the 

 Thornborough bridle track, and ascending the range, the rocks, 

 wherever exposed, belong to the Sandstone series, and vary from 

 fine-grained sandstones to coarse conglomerates ; and the 

 summit of the range itself, and for some distance on both sides, 

 consists of sandstone. 



Along the range, in a northerly direction, after crossing a 

 belt of elvan, sandstones — some fine-gramed and micaceous, 

 others of a coarser texture — occur to a point less than half-a-mile 

 from the head of the Wild River Valley, where a belt of porphyry 

 comes in. 



Mr. James Williamson, of Herberton, took me to a pomt 

 about half-a-mile north of the Thornborough track, where a 

 little creek, risnig in a spur of the main range, runs down to 

 the Walsh River. On running this creek down towards the 

 Walsh River, the ground is everywhere strewed with fragments 

 of coarse sandstone and conglomerate, and where the creek 

 begins to take a defined course, I was able, after two visits, to 

 get the most satisfactory observations of this series yet obtained. 



The following is the order of the rocks crossed over in 

 descending the creek, but as the rocks are not everywhere 

 exposed, I could not determine the thickness of the beds, which 

 are all nearly vertical : — 



1. Sandstone, grey and red. Strike north 20 degrees 

 west and south 20 degrees east, apparent dip east-north-east. 



2. Porphyry dyke, 20 feet thick, running north and south. 



3. Fine-grained dark grey sandstone. 



4. Shaly sandstone. Strike north 20 degrees west and 

 south 20 degrees east, with a steep dip to the east. 



5. Band of dark coloured and red sandstone. 



6. Small waterfall over dark coloured altered sandstone, 

 running north 20 degrees west and south 20 degrees east. 



7. Elvan dyke, 80 feet thick, with the same strike as 

 above. 



8. Fine-grained elvan of considerable thickness. 



9. Dark sandstone. Strike not obtainable. 



10. Dark sandstone, running north and south. 



11. Coarse sandstone. 



