The whitewater river run Segment D in Virginia is a 6.4-mile stretch of the Cowpasture River from Gathright Dam to State Route 687 Bridge at Clearwater Park. The ideal streamflow range for this segment is between 500-1500 cfs. The Cowpasture River is rated as a Class II-III river, with Class IV rapids after heavy rain.

This segment is known for its scenic beauty and fun rapids, including the scenic Gathright Dam and the technical Class III rapids at the Cowpasture River Falls. Other notable rapids include Twin Falls, Devil's Kitchen, and Ledge Drop. However, caution should be taken during high water levels as the rapids can increase in difficulty.

There are specific regulations in place for this area, including a Virginia fishing license requirement for those who want to fish in the river. Additionally, there are specific regulations for camping and fires in the nearby George Washington and Jefferson National Forest.

Overall, the Cowpasture River's Segment D is a great option for intermediate paddlers looking for a fun and scenic whitewater experience. However, it is important to pay attention to water levels and regulations in order to ensure a safe and enjoyable trip.