25. Morwell River - Yinnar

This information has been developed from the publications:

Sites of Geological and Geomorphological Significance in Central Gippsland (1981) by Neville Rosengren, M.S McRae-Williams and S.M Kraemers,
Sites of Geological and Geomorphological Significance on the Coast of Port Phillip Bay and in the Catchment of Westernport Bay (1984, 88) by Neville Rosengren.
Sites of Geological and Geomorphological Significance in the South Gippsland Marine and Coastal Parks (1989) by Neville Rosengren.

Geological heritage sites, including sites of geomorphological interest and volcanic heritage sites, are under regular revision by the Geological Society of Australia, especially in the assessment of significance and values. Reference should be made to the most recent reports. See the Earth Science Heritage (external link) section of the Geological Society of Australia website for details of geological heritage reports, and a bibliography.

Location:	404575. Morwell River flood plain 0.5 to one kilometre south of Yinnar.	Site 8121-25
Access:	Midland Highway, Yinnar.
Ownership:	Private Land.
Geology/Geomorphology:	A district levee borders the Morwell River at Yinnar and a backswamp is contained between this levee and the valley-side bluffs.
Significance:	Regional. Such distinct levee and backswamp development is unusual in Central Gippsland streams. Well developed levees and backswamps were a characteristic feature of the Morwell River flood plain before the major diversion works in the Hazelwood area. This section at Yinnar is one of the few remaining undisturbed levee backswamp bluff landform units on the river.
Management:	Major river diversion works here would destroy the site. Future diversion projects should attempt to retain the landform units along at least several hundred metres of the flood plain.

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