Examined the lead vein, tracing it 320 yards in a direction north 30 degrees east magnetic, along the bed of the Murchison River, which was nearly dry; clearing the sand and loose stones from the surface, found it to vary from eight to twenty-four inches in width, the general average being twelve inches, the dip to the west-north-west at an angle of about 80 degrees from the horizon. Throughout the whole length the lead vein appeared to be one solid mass of galena; the northern end either terminates or alters its direction close to a vein of schistose rock, which intersects the adjacent rocks; to the south the lode was covered by several feet of sand, which prevented its being traced further, as we had not time to remove it; the whole of the vein which was traced was included within the banks of the river, and the greater portion was covered by shallow water. One specimen of galena showed traces of copper. The rock which prevails on each side of the vein is a hard compact gneiss, abounding with garnets, some of which are of good colour, but mostly full of flaws; the stratification of the gneiss is somewhat confused, but it generally dips at a high angle (sometimes nearly perpendicular) to the westward, the strike being north and south. The facilities which the position of the lode offers for mining are not very great, as it occupies the lowest part of the valley, and steam power would be requisite to free the mine from water, and at the same time, unless the small boat-harbour near the mouth of the Hutt River, or Gantheaume Bay (both within thirty miles), be found suitable for the purpose, Champion Bay, distant sixty-two miles in a direct line to the south, is the nearest port where the ore could be shipped. In the evening the Governor examined the spot where Mr. Walcott had discovered the small pieces of lead ore about two and a half miles below the lode, but as most of the pieces had been picked up on that occasion, we could only find a few fragments of it.
9th December.
Left the encampment at 4.40 a.m., and steering about south-west, made our former bivouac on the Hutt River about 1.0 p.m., and halted for the rest of the day.
10th December.
Started at 4.50 a.m., steering 160 degrees magnetic over sandy country; passed a small grassy valley at 8.0; halted on the north branch of the Bowes at 10.10 on a small pool of brackish water; dined and resumed our route at 2.40 p.m.; steered south over a grassy country till 6.10, when we halted for the night on a tributary stream to the Bowes; obtained fresh water by digging, the pools being very small and brackish.
Conflict with natives. Governor speared.
11th December.