Yobarnie Keyline Farm is a heritage-listed former experimental farm and now pastoral property at 108 Grose Vale Road, North Richmond, City of Hawkesbury, New South Wales, Australia. It was designed by PA Yeomans and built from 1943 to 1964 by PA Yeomans. It is also known as Redbank North Richmond and Belmont Park. The property is owned by Redbank Communities Pty Ltd. It was added to the New South Wales State Heritage Register on 8 March 2013.