This video is part of the Virginia Master Naturalist program basic training curriculum for volunteers.  Combined with Parts 1, 2, 3, 5, and 6, it addresses many of the learning objectives for the Virginia Biogeography training topic.  We wrote the objectives and created the content with input from the Virginia Master Naturalist Program's sponsoring agencies, volunteers, and partners.  Gary Fleming, vegetation ecologist with the Virginia Natural Heritage Program, provided the bulk of images and text for this presentation.  The video is narrated by Michelle Prysby, Director of the Virginia Master Naturalist program.