When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. West Virginia - Wikipedia

    en.wikipedia.org/wiki/West_Virginia

    Sea level rose and fell many times during the Carboniferous Period (Mississippian and Pennsylvanian Subperiods), yielding a variety of rock strata that dominate the bedrock today. The Appalachian Mountains , which are a major influence on the present-day geography of West Virginia, formed more than three hundred million years ago.