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 Lawson about the same age, but Wentworth wasbarely out of his 'teens, and professedly joined the expedition in a freak of youthful adventure.

This memorable expedition, consisting of the three parties named, together with four attendants, a few pack horses, and several hunting dogs, left Blaxland's farm, at South Creek, on the 11th of May, 1813. The same afternoon the Nepean was crossed at Emu Ford, and the first encampment made the same evening at the foot of the mountains which had so long marked the western boundary of the settlement. The plan they resolved to follow was to adhere to the dividing ridge or watershed between the Warragumby and Grose Rivers, being careful to head all the tributaries departing to the right or to the left. This determination proved the secret of their ultimate success, and put the explorers in possession of the only key to the situation. Next morning the Emu Plains were left behind and the ascent of the mountains commenced. The high land of Grose Head is noted as being about seven miles to the north-east, and the place where the ascent began must have been considerably to the north of the present Zig-zag, and near the starting point of the original Bathurst-road. Having scaled the steepest part of the ridge, here about 800 feet high, the travellers were careful to head all the watercourses on both sides, in the hope of finding that the highest ground would also be continuous. The first day's progress amounted to a little over three miles, generally in a south-western