Geography
The catchment area is 7.4 km2 (3 sq mi) with a boundary of approx 11 km (7 mi), length (east to west) of 4.1 km (2.5 mi) and width varying from 0.6 km (0.4 mi) at the coast to 3.5 km (2.2 mi) in the centre. The Glenrock State Recreation Area (SRA) together with Awabakal Nature reserve contains 7 km2 (3 sq mi) but only approx 2 km2 (1 sq mi) (approx 30% of the catchment area) of this is within the Glenrock Lagoon catchment area.
There are 3 sub-catchments areas, Little Flaggy Creek in the north, Flaggy Creek in the centre and a small unnamed creek in the southeast. Two of the main tributaries are, Flaggy Creek (approx 4 km (2 mi) in length) and Little Flaggy Creek (also shown on some maps as Glenrock Creek). On a Map of the Parish of Kahibah dated 1887, Little Flaggy Creek was named "First Flaggy Creek" and Flaggy Creek was known as "Second Flaggy Creek".
The catchment has mainly clay soils. Dry and Swamp Sclerophyll Forest and Rainforest vegetation exists in the bush areas.
Read more about this topic: Glenrock Lagoon
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