into , to within 45 km of the Georgina floodout complex. As a consequence, it is correctly included in the Georgina Basin. There is one river of moderate size in the Georgina basin that does not connect to any of the major and that is Lucy Creek, which runs east from the Dulcie Ranges and may once have connected to the Georgina via Manners Creek.

Table 7. Summary statistics of the major rivers and creeks in Drainage Division Drainage Major Tributaries Initial Interim Highest Point Height of Lowest Straight System Bioregion & in Catchment highest Point Line Terminal (m asl) Major in NT Length Bioregions Channel (m asl) (km) (m asl) Basin: Finke R. Hugh R., Palmer R., MAC FIN, STP, 1,389 700 130 450† Karinga Ck., SSD Mt Giles Coglin Ck. Basin: Todd R. Ross R. BRT MAC, SSD 1,164 625 220 200 Mt Laughlin Hale R. Cleary Ck., Pulya Ck. MAC SSD 1,203 660 200 225 Mt Brassey Illogwa Ck. Albarta Ck. MAC BRT, SSD 853 500 230 140 Mt Ruby Hay River Basin: Plenty R. Huckitta Ck., Atula MAC BRT, SSD 1,203 600 130 270 Ck., Marshall R. Mt Brassey Corkwood (+ Hay R.) Bore Hay R. Marshall R., Arthur MAC, BRT, SSD 594 440 Marshal 70 355 Ck. (+ Plenty R.) CHC 340 Arthur Basin: Georgina R. Ranken R., James R., MGD, CHC, SSD 220 215 190 >215 † (?Sandover R.) (?BRT) Sandover R. Mueller Ck., Waite MAC, BRT, BRT, 996 550 260 270 Ck., Bundey R., CHC, DAV CHC, Bold Hill Ooratippra Ck. MGD Field R. Marqua Ck., Grave CHC SSD 350 190 130 >80 * Hole Ck. Bulinburn Knobs Lucy Ck. (no longer connects BRT CHC 550 320 255 60 to the Georgina R.) West of Picton Springs In table 7, the highest elevation of a major channel was determined using the AUSLIG 9 second DEM, with subjective assessment of what is a major channel; typically, where large sandy channels form on relatively flat ground. The length of the river was determined from the longest straight line distance from a point in the upper catchment to the furthest mapped terminal channel and was manually measured using a GIS. † Note: the length for the Finke River includes the South Australian portion as shown on 1:1M topographic maps; the length for the Georgina includes the catchment to the north of the arid NT and is measured to where the river crosses into Queensland at Lake Nash. *Note: the length given for the does not include the Queensland portion.

Alternative Grouping of Catchments

The Coordinating Group (online) divides the Lake Eyre Basin into sub regions that are not based on the drainage basins of the Australian Water Resources Commission. In their regionalisation, the Finke, Todd, Hale, Plenty-Hay and catchments form the ‘Desert Rivers Region’. The small area on the south Australian border that feeds into the Macumba River is part of their ‘Western

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