Book excerpt: The 75 sites described in this guide take you across the red desert to the high mountain majesty of the Big Horns and Wind Rivers as well as the geologic wonders of Yellowstone National Park. Graham, a former hardrock miner, developed an interest in rocks at an early age, and he shares his enthusiasm for rockhounding and his appreciation for the diverse Wyoming landscape that holds the treasure. Each description provides detailed information complete with maps on how to find the remote as well as popular digs, what will likely be found there, the tools to bring, the best season to visit, the appropriate vehicle to drive, or when to lace up your hiking boots to get to those out-of-the-way places.