The Friends of the W&OD (FOWOD) is a volunteer affiliate of the W&OD Railroad Regional Park and the Northern Virginia Regional Park Authority.

The purpose of FOWOD is to support and enhance the trail and its multiple uses as a recreational environmental and historic resource through fund-raising, promotion, educational programming and maintenance.

Activities of FOWOD include:

• Acquisition of trail improvements such as benches, water fountains and rest room facilities.
• Public awareness programs for trail safety.
• Advocacy for improved crossings of intersecting roadways.
• Establishment of a volunteer trail patrol.
• Trail maintenance and landscaping projects