Journals of Australian Explorations Part 8

In the month of March, 1857, Mr. Surveyor F.T. Gregory, while engaged on the survey of the lower part of the Murchison, observed that the river came down in flood, though there had been no rain for several months near the coast, and taking advantage of such a favourable opportunity of extending the exploration of the country beyond the point at which previous explorers had been driven back for want of water and gra.s.s, he proceeded up the Murchison, accompanied by his a.s.sistant, Mr. S. Trigg, following the course of the river for 180 miles. For the last fifty miles the condition of the vegetation showed that there had been heavy rains which had caused the floods in the lower part of the river.

The following is an abstract of Mr. Gregory's report to the Surveyor-General, as published at the time in the Perth Gazette:--

We last week intimated that an exploratory trip had lately been made into the interior eastward of the Geraldine Mine. We have now the pleasure and satisfaction of laying before our readers some details of one of the most una.s.suming explorations, yet important in its results, which has ever been undertaken in this colony. In the latter end of March last, Mr.

a.s.sistant Surveyor F. Gregory and Mr. S. Trigg started from the Geraldine Mine with two horses and sixteen pounds of flour, to trace the Murchison to its source, and returned after thirteen days' absence. Mr. Gregory has made a short report of his journey to the Surveyor-General, from which we have been kindly furnished with the following extract:--

While at the Geraldine Mine I availed myself of the circ.u.mstance of the Murchison being in flood to ascend that river and complete the sketch of the unexamined portions, as also to gain any additional information that might facilitate the exploration of the country between this and the Gascoyne River. The fact that the natives describe a considerable tract of gra.s.sy country extending northward from the head of the Murchison, plentifully supplied with water, was an additional incentive to ascertain from whence the inundation came.

TROPICAL RAINY SEASON. GOOD PASTORAL COUNTRY.

Accompanied by Mr. S. Trigg, I proceeded up the river about 180 miles, at which point it ceased to run; we then ascended a hill in the vicinity of 600 or 700 feet elevation above the plain, which I have since found to be, beyond a doubt, Mount Murchison of Austin; unfortunately I was unable to procure a copy of his map or journal, and was thus prevented from laying out my route to the greatest advantage by pushing more to the northward and going over more new ground. As it is, the only information I have been able to gain, beyond completing the plan of the river, is that the princ.i.p.al fall of rain had been eastward of the 116th degree of longitude, and that the tract of country between the great South Bend and Mount Murchison, which proved barely capable of supporting Mr. Austin's small party of horses in November, 1854, is now yielding a pasture nearly equal to the average of the Champion Bay district, and in some parts most luxuriant, the gra.s.s having scarcely arrived at maturity was perfectly green; this remarkable change in the character of the country is, I am inclined to think, not entirely confined to this year in particular, but that from meteorological causes this district has not unfrequently the benefit of tropical rains falling during the months of January and February, although not always in sufficient quant.i.ty to cause the river to flow as low as the settled districts.

It has already been observed by many persons that during the summer months the prevailing sea breezes divide the northerly currents of vapour about 100 miles inland from the west coast, preventing the rain from falling throughout the same parallel of lat.i.tude.

As near the eastern limits of my route the Murchison throws off two branches nearly equal in magnitude to the main stream, I am induced to imagine that its extreme source does not lie more than sixty or seventy miles beyond that point, and had it not been that I did not feel justified in abstracting so large a portion of time from the regular surveys of this district, there is no doubt but that I could with every facility have completed the exploration of the country as far as the Gascoyne in two or three weeks.

On comparing the tracing of the Murchison, which I now enclose, with Mr.

Austin's route, it will be observed that there is a difference of seventeen miles in lat.i.tude, and something more in longitude throughout the eastern portion, a discrepancy which I am at a loss to account for, as my dead-reckoning to both the outward and inward track agree well with my cross-bearings; my lat.i.tudes were, however, taken only with a pocket s.e.xtant with a treacle horizon, and might therefore not be implicitly relied on. I have, however, preferred plotting my route exactly as booked in the field, leaving the existing error to be cleared up at some future period.

From Mr. Trigg, who arrived on Wednesday by the Preston from Champion Bay, we have gathered the following additional particulars:--

The outward route was on the south bank of the river Murchison; the first sixty miles was but indifferent, but there were many spots of gra.s.s, sufficient to maintain travelling herds or flocks; afterwards the soil on the banks of the river improved and were continuously gra.s.sy, the general width being about half a mile. About lat.i.tude 26 degrees 50 minutes, longitude 116 degrees east, two large branches, almost if not quite equal to the main stream, join the Murchison from the eastward. About Mr.

Austin's Mount Welcome the gra.s.s was found very luxuriant--from two to three feet high, and between there and Mount Murchison the country is described by Mr. Trigg to be very beautiful, and the soil superior to any he had previously seen in the colony, and equal to the best land in Victoria. Mount Murchison itself is an immense ma.s.s of quartz with granite round the base; this differs from Mr. Austin's description, but that gentleman does not appear to have ascended the hill. From the summit three high lands were observable, one an isolated peak fifty miles east, the others to the north and north-east apparently more distant; so far as could be seen, the country to the east and north-east appeared scrubby and indifferent. The return was on the north side of the Murchison; and here a large extent of good gra.s.sy land was found, not on the bank, but a mile and a half from the river, and reaching four or five miles in width to the base of some hills, and reaching westward to the large northerly bend of the river in longitude 115 degrees 30 minutes about forty miles from the Geraldine Mine; the good land in all cases was very flat, the soil a red loam, which when dry was very open; the whole country is singularly infested with white ants, of which every tree living or dead appeared to have its colony. Mr. Trigg regards the country around Mount Murchison as auriferous.

The striking difference there is between this account of the country on the Murchison and that given by Mr. Austin may be accounted for in several ways: first, Mr. Austin does not appear to have crossed, but skirted the country intervening between Mount Welcome and Mount Murchison, but he describes the land about the latter as improving, and found water; while it was the feed and water at Mount Welcome which, in all probability, saved his party from perishing. The land on the north side, spoken of so favourably by Mr. Trigg, was not seen by Mr. Austin, and also his party was so exhausted that it was out of his power to diverge from a direct line in order to examine the nature of the country on either side; whereas Messrs. Gregory and Trigg made such an examination whenever any favourable appearance presented itself, and thus determined the quant.i.ty of valuable land for a distance of six or seven miles on each side of the river, and have thus been the means of conferring on the Colony one of the greatest benefits it has received since the northern district was first opened by Mr. A. Gregory.

GASCOYNE RIVER.

1858.

PERTH TO CHAMPION BAY.

In consequence of the very satisfactory results of the exploration of the Upper Murchison River by Messrs. Gregory and Trigg in 1857, a number of settlers in the northern districts subscribed horses and equipment for an exploring party to examine the country still further to the east and north, and with the sanction of the Government, the Expedition was placed under the command of Mr. F.T. Gregory, the result being the discovery of a considerable area of available country on the Gascoyne and Lyons Rivers, as described in Mr. Gregory's journal, of which the following is a copy:--

MR. F. GREGORY'S REPORT.

Western Australia,

Perth, July 26, 1858.

SIR,

In accordance with the instructions conveyed in your letter of the 15th March, authorising me to take command of the Expedition to Shark's Bay, in course of organisation by the northern settlers, I have the honour to furnish the following report of our proceedings while in that service, for the information of His Excellency the Governor.

The preliminary arrangements having been completed, and the heavy portion of the stores forwarded by sea to Champion Bay, I left Perth on the 26th March, accompanied by Mr. James Roe as second in command, chainer Fairburn having started the previous day with the team and light equipment of the Expedition.

Proceeding by way of Toodyay to the Irwin River, the party were joined by Mr. W. Moore with three horses; pa.s.sing on by way of Champion Bay, we arrived a Koobijawanna, the point of general rendezvous, by the 10th of April. On the 12th the remainder of the stores arrived from Champion Bay, the party being augmented to six persons by the addition of Mr. C. Nairn and Dugel, an aboriginal policeman. This day and the following were occupied in weighing and packing stores, shoeing horses, etc.

14th April.

The equipment of the Expedition being completed (with the exception of one horse to be procured at the Geraldine Mine), we moved on to Yanganooka, pa.s.sing the Geraldine Mine on the 16th, and bivouacked on the Murchison River, six miles above the mine, having obtained the additional horse, making in all six saddle and six pack horses; our supplies consisting of sixty days' rations, on a scale of one and a half pounds of flour, eight ounces of pork, four ounces of sugar, and half an ounce of tea per diem, the party being all well armed and furnished with ammunition.

The mean of our observations with the Aneroid barometer gives 575 feet for the elevation of this part of the river above the sea.

ASCEND THE MURCHISON RIVER.

17th April to the 25th April.

Was occupied in ascending the Murchison River by easy stages to the junction of the Impey, the highest point attained by me last year. The only observations worthy of remark were that the inundation had not been so great as that which occurred the previous summer, the gra.s.s up to this point not being by any means so abundant as I had found it on my former visit; the volume of water now running in the bed of the river being, however, at this time about the same, although none of the tributaries, including the Roderick and Impey, had been in flood, little or no rain having fallen to the west of the 117th degree of longitude, except to the north of lat.i.tude 26 degrees.

I availed myself of the opportunity afforded to make several additions and corrections to the map of this part of the country, verifying the correction made by me last year in the lat.i.tude of Mount Murchison and adjacent hills. By an improved series of triangulation and a carefully observed set of lunar distances, I am inclined to place Mount Murchison in about longitude 116 degrees 30 minutes east, which makes it more nearly approximate to the longitude formerly given by Mr. Austin.

The variation of the compa.s.s I found by several amplitudes to be 2 degrees 30 minutes west. The bed of the Murchison River is here about 1,077 feet above the sea. In addition to the fish and game formerly observed on this part of the river, we met with large flocks of the gallinule, which have for so many years excited the curiosity of the colonists as to their habitat; from subsequent observations it is evident they come from much further to the north-eastward. But one party of natives had as yet been seen, consisting of eight or ten, who chased our native Dugel to the camp while out shooting, but it was difficult to ascertain whether with hostile intentions. From this time to our return we regularly mounted sentry during the night, and no one was allowed to quit the party any distance alone--a precautionary measure the necessity of which was fully borne out by the sequel.

26th April.

From our camp, which was situated about eight miles west of Mount Murchison, we fairly commenced the exploration of unknown country.

Following the river nearly north-north-east for fourteen miles it turned abruptly to the east; we, however, held our course, which at four miles further brought us to the foot of Mount Narryer, which we ascended, and procured a valuable round of angles from its summit. This hill has an alt.i.tude of 1,688 feet above the sea, and is formed by the eruption of a coa.r.s.e dark-coloured crystalline trap through a base of amorphous sandstone, the direction of the range of which it forms a part being nearly north and south. Skirting round the north end of this range, we struck east over a stony plain, thinly gra.s.sed amongst open wattles, and at five miles again came upon the Murchison some time after dark. The pools here were somewhat larger than for many miles below, being from sixty to eighty yards wide and half a mile in length, the water in them becoming decidedly brackish; samphire, atriplex, and other salsolaceous plants being abundant on the banks.

27th April.

We only advanced nine miles, owing to Mr. Moore and Dugel having to return for one of the water-beakers, which had been torn off the pack-saddle the previous night in a thicket. Towards our bivouac, which was in lat.i.tude 26 degrees 23 minutes 38 seconds, the country near the river improved much, the channel of the river becoming very shallow; the water had spread over the flats for more than half a mile on either side, large flooded-gum trees growing abundantly with a fine sward of gra.s.s beneath, the soil being a rich brown clay loam. Gallinule and c.o.c.katoos were in large flocks feeding on the gra.s.s seeds, which were now nearly ripe.

28th April.

To lat.i.tude 28 degrees 7 minutes the river continued to come from north by east through an extensive plain, bounded on the west by a low range of trap and granite hills, at an average distance of six or seven miles, while to the eastward only a few distant peaks were visible, flooded-gum growing plentifully for more than a mile back from the river, on flats of tolerably good pasture. Receding somewhat further from the river, the country opens out into extensive plains yielding but little gra.s.s; atriplex bush and thinly scattered stunted acacia and melaleuca trees forming almost the entire vegetation.

29th April.

A few miles nearly north brought us to where a considerable tributary joins the Murchison from the north, the river trending first north-east, then east, and finally towards the afternoon it came from the southward of east, our bivouac being only seven miles north of the previous night, while we had made nearly eighteen miles of easting. The bed of the river had gradually become more rocky as we ascended, gneiss with quartz d.y.k.es pa.s.sing through it and yielding a large quant.i.ty of salt, rendered the running water of the river scarcely drinkable; the only fresh water was found in the back channels filled by the late inundations. The ranges which ran parallel to the river to the westward terminated some miles to the north of the bend. Another range, apparently granitic and broken up into detached peaks, commencing a little to the eastward of its termination, runs east for about twenty miles at the distance of six or seven miles from the north bank of the river.

To the eastward an elevated range with two conspicuous summits, which were respectively named Mount Matthew and Mount Hale, terminated the view in that direction, while to the south only a few detached peaks were visible.

To-day we first observed a very beautiful convolvulus, which we afterwards found to bear roots like a sweet potato, some of them more than a pound weight and well flavoured, forming a very important article of food to the natives. The flowers are numerous, and measure from two to three inches in diameter, their outer edges of a dark lilac, deepening to a rich purple at the centre, with a pale green convolute ribbing on the outside, the stem and leaf of the plant resembling the kennedya. Mr.

Drummond, to whom I have described it, considers it an important discovery, as by cultivation it might become a valuable addition to our Australian esculents.

A small species of rock-melon was also found in great abundance about the size of a pigeon's egg, somewhat bitter to the taste, but they were not ripe; in other respects it much resembles the cultivated varieties.

The bed of the river at this night's bivouac had attained an elevation of 1,240 feet above the sea.

LEAVE THE MURCHISON FOR THE GASCOYNE RIVER.