Charles Hunt first camped at Weowanie on 3 August 1864 during his Exploration Eastward of York.

He arrived at Weowanie from Duladgin on 27 May 1865 and recorded:

“– 5pm, finished the well or tank – it may be considered the latter as there is but the least sign of soakage – but for a tank it is admirably adapted, being only ten feet deep by thirteen feet broad – sunk in the centre of gully from the granite rocks about 200 feet distant – I deemed it unnecessary to stem it up – as it was sunk through solid granite – I trust that the first rainfall will fill it in which case there will be a supply for all traveling purpose for some time to come…”

The tank is located near the southern base of the rock in a small gully bearing southerly towards a chain of small salt lakes.

Hunt recorded the name as Weonanie and it is not known how or when the change to Weowanie occurred although a transcription error would appear to be likely.

Hunt recommended a 20 acre reserve for this tank, as there was no permanent water at Duladgin seven kilometres to the south west. The tank is in Weowanie Nature Reserve (reserve No. 3113) that was originally gazetted in 1896. It is now a Class C Reserve for both water and the conservation of flora and fauna. There are many other interesting, unnamed granite outcrops in this vicinity.