Glass Buttes, Oregon. Whether you are a rockhound, flintknapper or jewelry artist, you may have heard of this place. Set aside by the Bureau of Land Managment as a gem collecting area, this vast expanse of hilly terrain is home to a massive deposit of high quality obsidian stone in many varieties. For the casual collector, the land is littered with glass pieces pebble to fist size. For the serious hobbyist with a rock pick, shovel, and patience, there are boulder sized rocks of jaw-dropping beauty. This is a simple book with a simple purpose. It is a selection of some of the best of mycollection of thousands of closeup photos of Glass Buttes obsidian. If you are interested in obsidian, you will be astonished at the complex beauty of these stones. They are like nothing you have ever seen before.obsidian.