Elevation data for ELR NHM4 is based on LiDAR surveys sampled at 100 metre intervals. The elevations (in metres, relative to mean sea level) are an indication of the ground level from an aerial perspecitve and don’t specifically relate to the railway track level.
| Mileage | Elevation | Profile |
|---|---|---|
| 18M 0715y | 44.14 | |||| |
| 18M 0770y | 44.74 | ||||| |
| 18M 0880y | 44.67 | ||||| |
| 18M 0990y | 42.59 | ||| |
| 18M 1100y | 41.38 | || |
| 18M 1210y | 41.01 | | |
| 18M 1320y | 41.00 | | |
| 18M 1430y | 40.84 | | |
| 18M 1507y | 40.97 | | |