Answer: The drive from Seligman to Prescott through Williamson Valley Road (also known as County Road 5 or Williamson Valley–Seligman Road) is a scenic backcountry route that many travelers consider as an adventurous alternative to the main highway route via I-40 and AZ-89. However, it’s important to note that this route is only partially paved and includes a significant stretch of unpaved road, especially between Seligman and the northern parts of Williamson Valley.