THORO ERDL RM 1
Spatial/elevation data
| Coordinates | N 38.587646° W 78.359732° (estimate) |
| Elevation | Unknown |
| Location | Virginia
Madison County Old Rag Mountain Quad |
Mark description
| Type | Reference Mark Disk |
| Setting | Concrete Slab |
| Monumented | 1959 by NGS |
Narrative and photographs
For more information about this reference mark, see its parent mark THORO ERDL.