What does external migration mean? The definition of external migration is migrating, or moving, to a new home in a different state, country, or continent. This is a form of human migration. Birds migrate a â¦ t specific times of the year and travel to other states or countries as the seasons change.
Fort Lewis was originally established in 1917 with the passage of a Pierce County bond measure to purchase 70,000 acres (280 km2) of land to donate to the federal government for permanent use as a military installation. A portion of the initial land was taken from the Nisqually tribe's reservation.
Population Density 2000 U. S. Census By Block Group 0 6 12 Miles Lewis County, Washington This map was compiled by Lewis County Geographic Information Services. The base map was developed by the Washington State Department of Natural Resources by scanning and digitizing United States Geological Survey 1:24,000 quadrangle maps. The accuracy of the map has not been verified, and it should be used for informational purposes only. Any possible discrepencies should be brought to the attention of Lewis County Geographic Information Services. Population data was derived from 2000 Census Bureau T.I.G.E.R. files, deliniated by Census Block.