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River channels
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1. Comparison of changes in course of Mississippi River below mouth of Arkansas River, 1765, 1820 period, 1861, 1881-93, 1913-21, with 1930 /
United States. Mississippi River Commission. Mississippi River Commission,.
2. Geologic Units (Polygons): Albion River Watershed, California, 1984-2000
1984. California Geological Survey. This polygon shapefile depicts geologic units including sand, silt, gravels, alluvium and colluvium deposits within the Albion River watershed in M... California Geological Survey.