River Knobs (West Virginia)
 For other River Knobs see River Knobs (disambiguation). The River Knobs — formerly known as East Seneca Ridge — are a ridge and series of knobs in western Pendleton County West Virginia USA along a stretch of the North Fork South Branch Potomac River. Although the Knobs (peak elevation: 2854 ft) are dwarfed by Spruce Mountain to the west (peak: 4840 ft) and by North Fork Mountain to the east (peak: 4588 ft) they are notable for their series of prominent “razorback” ridges or “fins”.