Wolgan River Subcatchment
The Wolgan River joins the Capertee River and the Wollemi River in the Wollemi National Park to become the Colo River.
Both the upper and lower reaches in the Wolgan subcatchment display good condition sandstone gorges. However, the middle section of the Wolgan River and the lower section of the Wolgan Tributary have been degraded by a long history of agricultural land use with unmanaged stock access to the river. The Wolgan subcatchment is predominantly bushland protected by the Wollemi National Park and the Gardens of Stone National Park. It includes the Wollemi Wilderness area, home to the Wollemi Pine, and forms a very significant part of the Greater Blue Mountains World Heritage Area. Historic shale-oil mining and processing occurred beside the Wolgan River at Glen Davis and the river was degraded as a result of an excess supply of sediment. The wetlands and peat bogs in the Wolgan subcatchment provide habitat for the Japanese Snipe (migratory bird) but are under threat from grazing and erosion. |
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