The Logan River (Yugambeh: Dugulumba) is a perennial river located in the Scenic Rim, Logan and Gold Coast local government areas of the South East region of Queensland, Australia. The -long river is one of the dominant waterways in South East Queensland that drains the southern ranges of the Scenic Rim and empties into Moreton Bay after navigating the City of Logan, a major suburban centre located south of Brisbane. The catchment is dominated by urban and agricultural land use. Near the river mouth are mangrove forests and a number of aquaculture farms. Course and features The river rises below Mount Ernest on the southern slopes of the Scenic Rim, part of the Great Dividing Range and forms in the Mount Barney National Park, near the QueenslandNew South Wales border, below Mount Lindesay. The river flows generally north by northeast, joined by eleven minor tributaries, before heading east and eventually emptying into Moreton Bay. Its principal tributaries are the Albert River which joins it just east of Beenleigh; Teviot Brook which begins at Mount Superbus and joins the Logan River at Cedar Pocket; and Burnett Creek which is subverted by the Maroon Dam west of Rathdowney. The river descends over its course. In addition to the Scenic Rim, the Logan and its tributaries drain more than including the northern parts of the Border Ranges, the western slopes of the McPherson Range and the eastern slopes of the Main Range. The river's upper catchment is heavily influenced by the national parks of Tamborine, Mount Barney, Moogerah Peaks, Main Range and the Lamington Plateau, and numerous local government-owned reserves and conservation areas, that comprise part of the Shield Volcano Group of the UNESCO World Heritage Site Gondwana Rainforests of Australia. The river is crossed by the Mount Lindesay Highway near Rathdowney and at via Maclean's Bridge. The river is also crossed by the Pacific Motorway and the Old Pacific Highway south of . The Beenleigh railway line crosses the Logan between Loganlea and Bethania. A second rail crossing is planned to accommodate a doubling of rail tracks between the Kuraby and Beenleigh in time for the 2032 Brisbane Olympics. Tidal waters reach to just downstream of the Maclean's Bridge. Water harvesting Maroon Dam subverts Burnnett Creek, and supplies water to the Beaudesert Shire. Maroon is managed by SunWater and covers approximately . The Queensland Government has considered several projects to supply water