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.