Thousands of locations are shown in this handy guide to known rock and gemstone locations in the western half of the U.S. and part of British Columbia and Alberta, Canada.  This popular book, with over 70 pages of maps, locations and mileages, copyright since 1973, by C.Johnson and Son is the 29th edition. They have not gone into detail about private claims or property ownership since these are subject to constant change.  Check with the Bureau of Land Management for areas opened to collecting for home use, etc.  Claims are usually posted but the owners may allow collecting.  Remember, when traveling off the main highways, take plenty of food, water and clothing, and let someone know where you are going and when you will be back. Happy Trails!