[http://www.spk.usace.army.mil]
This week, I have visited Sacramento County in California. The first piece of information I would ask for would be a topographical map of the area. This map would show me how the terrain looks and where there might be peaks and valleys in the area. This will give me clues to how there might have been erosion from water or how there could have been conditions for mountains.
The second piece of information would be deep rock samples. I would want to see the type of rocks that are under the soil. Since Sacramento county is in a valley, I would expect to see sedimentary rock. Looking at the different strata would give me some clues about how long each historic period of the area was by the thickness of strata. Also, any evidence of sea life would be kept within the sedimentary rock.
The third piece of information I would want would be the location of any fault lines in the area. Fault lines give evidence of ground moving or shifting. If there are any elevation increases in the area, there might be evidence of metamorphosed or folding of the rock.
Above is a picture of New Hogan Lake. Although it is not located in Sacremento County, it is part of the same valley region that sacramento is in. Since Sacramento is an urban area, a picture of the region showing more geologic features better represents the area.
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