| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Gransden Lodge | 0.00 km | 0.0° | Next, R=5.00 km, Angle=90.0° |
| Towcester | 60.82 km | 265.5° | Symmetric, Rmin=5.00 km, Rmax=20.00 km, Angle=180.0°, Cylinder R=5.00 km |
| Earith | 74.57 km | 71.0° | Symmetric, Rmin=5.00 km, Rmax=20.00 km, Angle=180.0°, Cylinder R=5.00 km |
| Rushden | 43.48 km | 265.9° | Symmetric, Rmin=5.00 km, Rmax=20.00 km, Angle=180.0°, Cylinder R=5.00 km |
| Hardwick | 42.48 km | 105.6° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Gransden Lodge | 8.51 km | 243.7° | Cylinder R=3.00 km |
| Total: | 229.87 km | ||