49 



which closely resembles the Upland Miocene arenaceous beds 

 of Munno Para East and the surrounding neighbourhood. 



The Douglass "Well, which is sunk in fundamental rocks, only- 

 yields about 1,000 gallons of water daily ; it is about 60 feet 

 in depth to the water-line, of which about fifteen feet is sur- 

 face material, the remainder passing through old slate rock. 

 At this depth a scanty supply of excellent fresh water was 

 struck, which was slightly increased by sinking about ten feet 

 further. At a total depth of 70 feet a bed of very hard and 

 dry slate was struck. Driving was then resorted to in the hope 

 of finding a better supply, but that, too, failed, and the enter- 

 prise was abandoned. Following the dry channel which runs 

 nearly in a south-east by east direction from the well, I came 

 to a bold bluff of very hard quartzite projecting about 20 feet 

 above the general level of the country. The strike of this bed 

 is 20° east of north ; dip, 25° easterly. Looking down the dry 

 channel into the Douglass gorge and at about three-quarters 

 of a mile distant from this place, on the north-north-east side 

 of the channel, another and a more prominent bluff of quartzite 

 was displayed. As near as could be ascertained the strike of 

 the beds is 10° west of north ; dip, 45° easterly ; height above 

 the general level of the plain, about 50 feet. For a consider- 

 able distance up the stream, on the north-eastern side, seem- 

 ingly nothing but felspar is exposed to view. 



The track we then followed led in a north-north-easterly 

 direction, and over country showing primary rocks. Nothing, 

 however, of a very striking nature was observed, unless it was 

 the occurrence of a patch or two of arenaceous beds similar to 

 those we discovered on the western side of the Douglass. On 

 reaching the Blackfellows' Quarry, which is between three and 

 four miles from where we started in the morning, I noticed 

 that the stone exposed to view is a gritty fissile quartzite, and 

 must have been worked by the aborigines from time im- 

 memorial, judging from the size of the excavation, which 

 extends along the strike of the beds a distance of from fifty to 

 sixty yards, the depth of which in several places is not less 

 than from ten to twelve feet. The strike of these beds is 10° 

 south of east, dip 45° northerly. From the quarry referred to 

 the country declines for about a mile and a half into the bed 

 of Sunny Creek, after which a gentle rise occurs, when suddenly 

 the surface aspect of the country is changed from that of 

 a sandy nature to one literally covered over with ferro- 

 arenaceous boulders and nodules of every fanciful shape and 

 form. This character of surface is maintained for a distance 

 of from half to three-quarters of a mile, when the track 

 rapidly begins to fall to the level of the plain below. Yet the 

 potstones and catheads of ferro-arenaceous material are scat- 



