After their return to Sydney Cove, preparations were at once made to follow up this important discovery. On the 28th of June, Phillip, again accompanied by Hunter, left the Cove, having made much the same arrangements as before. There was a slight misunderstanding with regard to meeting the boat; but, after this was cleared away, the party soon floated out on to the waters of the new-found river. They rowed up the river until they reached the hill that Phillip, at a distance, had christened Richmond Hill. On traversing a reach of the stream, the main range, that as yet they had only dimly seen in the distance, suddenly loomed ahead of them, frowning in rugged grandeur close upon them, as it seemed. Struck with admiration and astonishment at this unexpected revelation of the deep ravines and stern and gloomy gorges that scored its front, over which hung a blue haze, Phillip, almost involuntarily, named them on the moment; the Blue Mountains. Next morning the explorers ascended Richmond Hill, from whose crest they looked across a deep, wooded valley to the mountains still many miles away. After a hasty examination of the country on the banks of the river, Phillip and his band returned to the settlement, he having now realised his brightest hopes and anticipations.
On the 11th of April, 1791, Phillip again started on an expedition, the object of which was a closer inspection of the Blue Mountains. He was accompanied this time by Captain Tench and Lieutenant Dawes; the latter, in December, 1789, had been sent out with a small party to reach the foot of the range, but had succeeded in approaching only within eleven miles of the Mountains, whence he was forced to retire by the rugged and broken nature of the country. On the present occasion, they reached the river two days after leaving Rose Hill. They followed it for another two days, but made no further discoveries, being greatly delayed by the constant detours around the heads of small tributary creeks, too deep to cross in the neighbourhood of the river.
This was the last exploring expedition undertaken by Governor Phillip. Considering that his health was not robust, and that the work entailed was of a specially arduous nature, his personal share in exploring the country about the little settlement was noteworthy. It proved him to possess both the foresight and the energy necessary in an explorer.
1.2. CAPTAIN TENCH.
In the month of June, 1789, Captain Watkin Tench, who, during his short sojourn in the infant colony showed himself as zealous in exploration as he was keen in his observations, started from the newly-formed redoubt at Rose Hill, of which he was in command, on a short excursion to examine the surrounding country. This trip, inspired by Tench's ardent love of discovery, became a noteworthy one in the annals of New South Wales. It was made during the month that witnessed the discovery of the Hawkesbury River. On the second day after his party left Rose Hill, they found themselves early in the morning on "the banks of a river, nearly as broad as the Thames at Putney, and apparently of great depth, the current running very slowly in a northerly direction."
This river, at first known as the Tench, was afterwards named the Nepean by Phillip, when its identity as a tributary of the Hawkesbury had been confirmed. Two other slight excursions were made by Tench in company with Lieutenant Dawes, who was in charge of the Observatory, and ex-surgeon Worgan. In May, 1791, Tench and Dawes started from Rose Hill and confirmed the supposition that the Nepean was an affluent of the Hawkesbury, a matter over which there had been some doubt since its first discovery by Tench. Tench returned to England in H.M.S. Gorgon, in December, 1791.
The names of Paterson, Johnson, Palmer, and Laing are also connected with exploration on the upper Hawkesbury.
1.3. THE BLUE MOUNTAINS: BARALLIER.
The exploration of that portion of Australia which was accessible by the scanty means of the early settlers was for many years impeded by the stern barrier of the mountains, and most of their efforts in the direction of discovery were aimed at surmounting the range that defied their attacks. Among the many whose attempts were signalised only by failure were the gallant Bass, whose name, for other reasons, will never be forgotten by Australians, the quarrelsome and pragmatic Cayley, and the adventurous Hack. Amongst them there was one, however, whose failure, read by the light of modern knowledge, was probably a geographical success. This was Francis Barallier, ensign in the New South Wales corps, who was encouraged by Governor King to indulge his ardent longing for discovery. By birth a Frenchman, Barallier had received his ensigncy by commission on the 13th of February, 1801, having done duty as an ensign since July, 1800, by virtue of a government general order issued by Governor Hunter. In August, 1801, he had been appointed by Governor King military engineer, in place of Captain Abbott resigned. In February, 1802, he was succeeded by Lieutenant George Bellasis, an artillery officer. Besides his expeditions to the Blue Mountains, he did much surveying with Lieutenant James Grant in the Lady Nelson. In 1804, he went to England and saw service in several regiments, distinguishing himself greatly in military engineering, amongst his works being the erection of the Nelson Column in Trafalgar Square, the designer of which was Mr. Railton. Barallier died in 1853.
Peron, the French naturalist, tells us that when in Sydney in October, 1802, he persuaded Governor King to fit out a party to attempt the passage of the mountains, and that a young Frenchman, aide-de-camp to the Governor, was intrusted with the leadership. He returned, however, without having been able to penetrate further than his English predecessors.