Comet River
 The Comet River is a river in Central Queensland which rises in the Expedition Range north of Expedition National Park and south of Rolleston. It then flows north through Comet towards a confluence with the Nogoa River where they both form the Mackenzie River.The Brown River is one of a number of tributaries and the Comet River Weir is the main water storage facility on the river. In the late 1990s the river was the site for a proposed new dam although it was never built.[citation needed]