Linden is a small unincorporated village in Fauquier and Warren Counties in the U.S. state of Virginia. It is located west of Washington, D.C. at exit 13 off of Interstate 66. In 1669, the "official" discovery of the Shenandoah Valley was credited to John Lederer and John Catlett at the present day site of Linden. The discovery and mapping of the area helped to ope…Linden is a small unincorporated village in Fauquier and Warren Counties in the U.S. state of Virginia. It is located west of Washington, D.C. at exit 13 off of Interstate 66. In 1669, the "official" discovery of the Shenandoah Valley was credited to John Lederer and John Catlett at the present day site of Linden. The discovery and mapping of the area helped to open the area for further settlement. A marker at the intersection of VA 55 and SR 638 in Linden help commemorate this event.