| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Trowbridge East | 3.58 km | 101.2° | Next, R=5.00 km, Angle=90.0° |
| Nunney | 20.38 km | 228.5° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Corsham | 27.56 km | 25.7° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Avebury | 22.95 km | 91.1° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Keevil | 16.89 km | 234.8° | Cylinder R=3.00 km |
| Total: | 87.78 km | ||