118 
gold in many places, although as yet none of them have proved anything 
of a permanent payable nature, the best patch being that of 13 ozs., ob¬ 
tained in Pischoley’s claimi, amongst large granodiorite boulders. One 
of the small patches on this Boggy Creek fall was known as Duffer Rush. 
There have been no shafts bottomed near this site, so no estimate of the 
depth of the ground can be given. As the source of the gold appears to be 
in the granodiorite, there should be many gullies in which prospects might 
be obtained. 
I do not consider that the gold so far obtained on this western fall has 
been of a sufficiently payable nature in the smaller gullies to warrant 
further boring on Boggy Creek. 
[Report sent in 30.10.06.] 
THE MT. WILLIAM GOLD-FIELD, GRAMPIANS. 
By E. ]. Dunn , F.G.S., Director, Geological Survey. 
This gold-field lies about 15 miles north-east from the Willaura Rail¬ 
way Station. There were formerly two townships, known as the Lower and 
Upper Camps; the last-named is now called Mafeking and the former 
Ladysmith, as they were established at the time of the Boer war. Lady¬ 
smith is 1,200 feet above sea level; Mafeking is about 600 feet higher, 
and is situated on a plateau about ij miles west from Ladysmith. To the 
north, Mt. William, about 2J miles distant, towers up to 3,827 feet above 
sea level. The rocks met with in this area are :—(1) The Grampian sand¬ 
stones and conglomerates, probably referable to the Devonian system.. 
(2) Granodiorite, or a fine-grained horneblendic, granitic, rock intrusive 
into the Grampian sandstones which in consequence, have been converted 
into quartzite and in some cases into rock that might well pass as quartz ; 
pebbles of the metamorphosed sandstones abound near Mafeking. (3) Ter¬ 
tiary deposits, probably of Newer Pliocene age, consisting of mottled red 
and grey clays, sands, and conglomerate; the gravel at the bottom of such 
beds has been extensively worked for gold, and in many places was highly 
productive. (4) Recent alluvial deposits filling the gullies and creek 
courses; these have also been extensively worked for alluvial gold. The 
beds consist chiefly of Grampian sandstone and quartzite boulders and 
pebbles, drift, and sand immediately derived from the Tertiary beds in 
many cases. Generally there is little clay present, and the stones are very 
cleanly washed. 
The Mt. William gold-field occupies a hollow at the southern foot of 
Mt. William, and the Grampian sandstones form a high rampart on the 
northern side. The floor consists of granodiorite from which the sand¬ 
stones have been removed. A tertiary (Newer Pliocene) lead runs westward 
from the Gap to near the top of Bristol Gully, then sweeps northward 
round the head of Malay’s Gully, through Emmett’s Gully, down past 
Poverty Gully in a southerly direction, past Mafeking, through the May 
Queen claim, and through the Engine shaft, and runs out towards Neild’s 
Gully. There appears to be a possibility that a western branch lead from 
near the head of Jimmv’s Gully joins the main lead somewhere near the 
Engine Shaft. The known lead has been partially worked eastward of 
Bristol Gully. In Bristol Gully several shafts have been sunk, but I was 
informed that owing to. heavy water thev were not bottomed in most cases. 
From Malay’s Gully to Emmett’s Gully the lead does not appear to have 
