(From the Back of the Box)
"Prospectors and miners have made fortunes overnight deep within the enchanting Mother Lode country of California. Their wild tales of buried treasure still excite a world dazzled by easy money."
"One such miner is a mad Irishman named Timothy O'Riley. He is in search of coal, oil, gold, rubies and diamonds. You'll guide him through the mysterious depths of the earth as he attempts to dig up hidden riches ... "