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- bedrock
- the solid rock layer under soil and gravel
- butte
- an isolated hill that rises suddenly from surrounding flat land
- deposit
- an area in which a great amount of one type of rock or mineral occurs
- elevation
- the height above sea level
- environment
- the surroundings in which a plant or animal lives
- eruption
- the process of emerging violently within the earth
- fossil
- the traces or imprint of a plant or animal that lived many years ago
- geyser
- a hot spring that sprays water and steam inot the air
- glacier
- a huge mass of slowly moving ice
- mercury
- the only metal that is a liquid at room temprature
- ore
- a type of rock that contains enough of a more valuable metal or mineral to make it worth mining
- phenomena
- events that can be observed and studied
- pinnacle
- a high peek
- prospector
- one who looks for valuable metals and minerals
- specimen
- a sample of a material taken for study
- strata
- layers
- topography
- the surface features of the earth, such as moutains, valleys, and rivers
- turf
- the top layer of soil that is held together by grass
- uranium
- a white radioactive metal
- vicinity
- the area near by