Hydrological measurements on this river by Hydro Tasmania began in 1955.
The easternmost point of the river catchment is defined by Barn Bluff where it also borders with the Murchison River river catchment.[5] The southern portion of the catchment has a very narrow separation from the adjacent Murchison River, where the Sophia River is the main river. The northern side of Sophia river catchment, a creek known as White Hawk, drains ground with features known as Granite Tor, and High Tor, which lie due east of Tullah. The northern Mackintosh catchment has a number of named tributaries. From the orientation of Mount Romulus, Fury River which originates near Barn Bluff, is the main eastern tributary. Mount Remus is drained to the south by Schist Creek which flows into the Fury River, and to the west, Devils Ravine. In the north east of the catchment area, Mayday Mountain is drained by Belvoir River. The north west area the Southwell River drains the eastern slopes of Mount Charles, which is north east of Mount Black.
The river name is used in cartography of the area, with the river name being allocated to current maps,[6][7][8] as well as significantly early maps of the region.[9]
^Kinstler, F. L. (1982), "Mackintosh and Murchison Dams River Diversions", Engineering Conference 1982: Changing Society, A Challenge for Engineering; Technical Papers, the, Institution of Engineers, Australia: 146–151, ISBN978-0-85825-163-2
^Waterman, Peter; South West Tasmania Resources Survey (1979). "Landforms" (Map). Mackintosh-Murchison catchment. Steering Committee, South West Tasmania Resources Survey. p. 42. ISBN978-0-7246-0261-2.
^Geological Survey of Tasmania; Collins, P. L. F. (1966), Geological Survey explanatory report, geological atlas 1 mile series, zone 7, sheet 44 (8014 N) Mackintosh (1st ed.), The Department, ISBN978-0-7246-0492-0
^Forestry Commission of Tasmania (1970), Mackintosh, D (Provisional ed.), Forestry Commission of Tasmania], retrieved 14 July 2015