Castlereagh River
The Castlereagh rises 20 km west of Coonabarabran in the heart of the Warrumbungle mountains at an elevation of about 850 metres. From its commencement upstream in the mountains the river initially flows east through the town of Coonabarabran. It then arcs round south and southwesterly to the village of Ulamambri, then south to Binnaway, and SSW to the small town of Mendooran which lies at the eastern side of the river's hook-shape. From here the Castlereagh flows in a westerly direction at the flattened bottom of the hook and then turns north-westerly towards the town of Gilgandra. From Gilgandra it continues to run northwesterly across the plains through Gulargambone and Coonamble, then continuing across expansive plains, with no urban centres, where elevations are less than 200m, until it joins the Macquarie River at its uppermost reaches beyond the Macquarie Marshes. Its confluence with the Macquarie is about 65 km SW of Walgett. Not far from the Castlereagh/Macquarie confluence the Macquarie itself joins the Barwon River at a place about halfway between Walgett and Brewarrina.
Lord Castlereagh (1802 EIC ship)
EIC voyage #1 (1803–1805): He sailed from Portsmouth on 27 April 1803, bound for Madras and Bengal. "Lord Castlereagh" was at Rio de Janeiro on 29 June. That day Robertson also acquired a letter of marque. "Lord Castlereagh" reached Madras on 11 September and Masulipatam on 30 September, and arrived at Diamond Harbour on 14 October. She was at Saugor on 17 February 1804, and visited Benkulen on 17 May before returning to Bengal, arriving at Kedgeree on 25 September. She was at Saugor on 13 October, and Calcutta on 15 December. Homeward bound, she was at Saugor on 30 January 1805, reached Madras on 12 February, and arrived at her moorings on 9 November.