| Title | "Obsidian Spirits Just Speak Once"óCalifornia Indians in a Geothermal Land |
|---|---|
| Authors | Susan Fox Hodgson |
| Year | 2005 |
| Conference | World Geothermal Congress |
| Keywords | Obsidian, Indians, California |
| Abstract | Over millennia, California Indians mined, quarried, and worked obsidian; traded the precious geothermal glass near and far; and incorporated it into their mythologies. California Indians were the state's first geothermal developers. |