Welcome to the Geology and Earth Resources Division. Washington's complex geology gives rise to many geologic hazards—earthquakes, active volcanoes, landslides, tsunamis, and abandoned mines. As the Washington Geological Survey, we contribute to the safety and economic well-being of Washington's citizens by informing the public, government, and industry about the consequences of geologic events and about the nature of the land around us, including the availability of important resources such as aquifers and sand and gravel.
Whether you are a local government planner, grade school student, research scientist, real estate developer, teacher, homeowner, or public official, we are your source for information about the geology, geologic hazards, and mineral, geothermal, and oil and gas resources of Washington State. Our library in Olympia contains a comprehensive collection of reference materials on these subjects. Students and teachers will find a wealth of educational material designed for the classroom.
We compile and publish geologic maps, which are the most fundamental and important tool of earth scientists. They are used for a broad range of practical applications, including growth-management planning, dam safety, hazard and risk assessment, water-resource appraisals, resource use and protection, education, recreation, and scientific research.
Regulatory Responsibilities
We regulate surface mine and metal mine reclamation, oil and gas drilling, gas storage, geothermal drilling, and underground fluids injection. One of our key responsibilities is assuring reclamation of Washington’s 1200 active surface mines. Reclamation means rehabilitating areas disturbed by surface or underground mining by restoring vegetative cover, soil stability, and water conditions at the site. Reclaimed sites can be used for fish and wildlife, grazing, forestry, wetlands, and commercial and industrial uses.