Maps
Walking and Biking Trails - GIS Data Warehouse
This mapping application is a data warehouse of Northern Virginia trails data resources that are maintained by Northern Virginia local governments, non-profit agencies, and Northern Virginia Regional Commission. All of the trails data in this warehouse are live connections to active data sources.
This data warehouse was identified as a regional priority at the Annual Regional Trails Summit of 2022 and developed by NVRC in 2023. As a data warehouse, the purpose is to share existing trails data resources for regional planning and to inform the general public of the trails in the community that can be used for recreation, leisure activity, and transportation. Note, trails data schemas and spatial accuracies differ among entities as this is a data warehouse and not intended to be a standardized data set.
GIS Data Warehouse 
Potomac Heritage National Scenic Trail - Maps
For questions about trail maps and data please contact NVRC's GIS Program Manager, Jill Kaneff at jkaneff@novaregion.org.