[2] The thin arch of the dam retaining wall, curved against the pressure of the water, was an innovation considered radical, and attracted the Reservoir international attention.

[5] The Barossa Reservoir was formed by damming the Yettie Creek gorge in the northern Mount Lofty Ranges, a feat that took over 400 men.

In addition to Gawler and country, a filtration plant constructed in 1982[6] allows the Reservoir to supply the suburbs of Munno Para and Elizabeth.

Aside from its acoustic attraction, the Whispering Wall offers great views of both the Barossa Reservoir and the surrounding, well-preserved natural bounty.

[7] At approximately 4:30 PM on Wednesday 21 April 2021, Henry Shepherdson jumped from the wall with his 9-month-old daughter, Kobi, strapped to him, amongst disturbed onlookers.