The desert can yield a bounty of treasures, but what does gold have in common with trees, fish and meteorites? To the right person, they all have a sentimental, if not monetary, value. Using the Tucson Gem and Mineral show as a launching pad for the quest, The Desert Speaks travels around the country's deserts to find out where exactly these items come from and who values these unusual treasures. The search begins with a hunt for fish fossils in the Red Desert of Wyoming and then a visit to the Painted Desert with the Bach family. These happy hunters have made a hobby out of legally collecting petrified wood. Then take a trip to Tucson, Arizona to see meteorite collector Robert Haag, who is one of the largest sources for meteorites, bought, sold and traded, in the world. Finally, travel to the Superstition Mountains, the legendary home of the Lost Dutchman Mine.