|MadSci Network: Earth Sciences|
Hi I don't live anywhere near, so I will tell you what I did and how I cam to my conclusion I looked at the image you mentioned on the Terraserver site I got the geographical position of that image. I then went to the USGS land use and land cover maps that area available on-line. I downloaded the Vincinnes, Indiana 1:250,000 land use map, imported it into a raster based GIS (I use Idrisi). Then I windowed in on the same area that you saw on terraserver. The USGS classifies two large areas to the west of town in their land use group 75, strip mines, quarries and gravel pits. Looking at a larger view of the map, this land use extends in a wide strip many miles north and sout of this site. I suspect that these are limestone quarries. The dominant landuse in the general area is deciduous forest, follwed by cropland and pasture I hope this helps
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