Uriarra, Australian Capital Territory

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Uriarra is a settlement in the Australian Capital Territory. It had been a forestry settlement from the 1920s to the 1980s.

The 2003 bushfires destroyed 16 houses in Uriarra, with only 6 houses still standing afterwards. 15 families moved away from the settlement, with 6 remaining.

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[edit] Geology

Uriarra Volcanics appear north west of the Winslade fault. It consists of dacite lava flows and pyroclastic deposits of tuff. A fine ashstone bed called Tarpaulin Creek Ashstone Member outcrops in a distorted north south line acts as a marker. Tuff and flows above and below the ashstone member contain obvious pink feldspar crystals. The tuff shows bedding, and the flows have banded flow structure. The Cotter Porphyry to the north of the Cotter Dam is actually a dacite flow. There is a limestone lens north of Uriarra Crossing. The outcrop goes from Mountain Creek Road in the west to the Murrumbidgee river in the east. It extends a few kilometers to the north of the ACT border and south to the Winslade Fault near the Cotter River. A wedge of limestone extends to the south south west including Pierces Creek.

See also: Geology of the Australian Capital Territory