Blainey is a great author. This book was much more orderly than Nickel country, Gold country. But the majority of the book focuses in early history with only a small last chapter devoted to the 70s and beyond. Written for the 100th anniversary ( in 1991-92) of the goldfields it gives a great overview. At this time the entire field was producing 600000 oz a year, most from the Super Pit. https://www.goodreads.com/book/show/4902055-the-golden-mile