When overpopulation or some other “push” factor causes folk groups to seek a new homeland, they are often “pulled” to places that are similar in terrain, soil, vegetation, and wildlife. A good example can be seen in the migrations of southern highland people from the mountains of Appalachia in the century between 1830 and 1930. As the Appalachians filled up, many highlanders began looking elsewhere for similar areas to pioneer. In their migrations they normally moved in clan or extended-family groups. Initially they found an environmental twin of the Appalachians in the Ozark-Ouachita Mountains of Missouri and Arkansas. Somewhat later, others sought out the hollows, coves, and gaps of the central Texas hill country. The final migration of Appalachian hill folk brought some 15,000 members of this culture to the Cascade and coastal mountain ranges of Washington State between 1880 and 1930. The role of environmental perception and clan ties in directing these migrations can be seen in the following remarks by a Kentucky mountaineer, recorded by W. R. Clevinger in 1937: “For a long time I’ve been considering leaving for Washington. I hear there’s good mountain country out there where people can still hunt, get work in mills and logging, and buy a cheap piece of land. Some of my kin out there have written back, wanting me to join them.”