In 1986 Mt O’Brien was officially renamed from Mt Dick and opened to the public by Mrs Hennessy (nee Cath O’Brien).
In July 1999 the Hon. Wilson Tuckey announced funding for the Mt. O’Brien Wheatbelt Lookout had been approved after an application for funding had been submitted by the Wongan Hills Tourism Group and shire of Wongan-Ballidu. Mt O’Brien Centenary of Federation “Wheatbelt Lookout” was officially opened on 27th October 2001, jointly by Hon. Wilson Tuckey M.P., Federal Member for O’Connor and the Wongan –Ballidu Shire President Mr Duncan Holme J.P., with 150 people attending.
At this event the Holme family donated to the Wongan -Ballidu Shire, 1 hectare adjoining the previous land excised, which now includes the mobile phone area and the Wheatbelt Lookout.
Mt O’Brien is the second highest point in the Wongan Hills (424 metres). Mt O’Brien has BBQ facilities, lighting, seating and tables. The lookout is wheelchair accessible.