Canadian Chart 1 Symbols, Abbreviations and Terms
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Positions, Distances, Directions, Compass - Section B
Control Points
| Ref. | IHO Symbology | Description | CHS Symbology |
| 20 |  |
Triangulation point |  |
| 21 |  |
Observation spot |  |
| 22 |  |
Fixed point |  |
| 23 |  |
Benchmark |  |
| 24 | |||
| 25.1 |  |
Distance along waterway, no visible marker |  |
| 25.2 |  |
Distance along waterway with visible marker | |
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