Indigenous peoples lived along the waterways of present-day Virginia for thousands of years before European contact. Archeological, linguistic and anthropological studies have provided insights into their cultures. Though little is known of specific tribal movements before European contact, the Shenandoah Valley area, considered a sacred common hunting ground, appears by the 17th century to have been controlled mostly by the local Iroquoian-speaking groups, including the Senedo and Sherando. The Algonquian-speaking Shawnee began to challenge the Iroquoians for the hunting grounds later in that century. The explorers Batts and Fallam in 1671 reported the Shawnee were contesting with the Iroquoians for control of the valley and were losing. During the later Beaver Wars, the powerful Iroquois Confederacy from New York (particularly Seneca from the western part of the territory) subjugated all tribes in the frontier region west of the Fall Line.