| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Gransden Lodge | 0.00 km | 0.0° | Next, R=5.00 km, Angle=90.0° |
| Banbury | 83.27 km | 261.7° | Symmetric, Rmin=5.00 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=5.00 km |
| Rushden | 56.32 km | 59.9° | Symmetric, Rmin=5.00 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=5.00 km |
| Northampton South | 25.46 km | 232.9° | Symmetric, Rmin=5.00 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=5.00 km |
| Hardwick | 61.35 km | 86.1° | Symmetric, Rmin=0.50 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=0.50 km |
| Gransden Lodge | 8.51 km | 243.7° | Cylinder R=3.00 km |
| Total: | 234.92 km | ||