The Big Bonanza was the events surrounding the Silver Mines in Nevada in the 19th Century. Dan deQuille, History of the Big Bonanza wrote the book in 1876 giving an account of the lives and people of Nevada.
Below I'm sharing the foreward written by Mark Twain, it is quite an endorsement.
One easily gets a surface-knowledge of any remote country, through the writings of travellers. The inner life of such a country is not very often presented to the reader. The outside of a strange house is interesting, but the people, the life, and the furniture inside, are far more so.
Nevada is peculiarly a surface-known country, for no one has written of that land who had lived long there and made himself competent to furnish an inside view to the public. I think the present volume supplies this defect in an eminently satisfactory way. The writer of it has spent sixteen years in the heart of the silver-mining region, as one of the editors of the principal daily newspaper of Nevada; he is thoroughly acquainted with his subject, and wields a practised pen. He is a gentleman of character and reliability. Certain of us who have known him personally during half a generation are well able to testify in this regard.
Hartford, May, 1876.