40 |
|
Obstruction, depth unknown |
|
41 |
|
Obstruction, least depth known by sounding only |
|
42 |
|
Obstruction, least depth known, swept by wire drag or diver |
|
43.1 |
|
Stumps of posts or piles, wholly submerged |
|
43.2 |
|
Submerged pile, stake, snag or stump (with exact position known) |
|
44.1 |
|
Fishing stakes |
|
44.2 |
|
Fish trap, Fish weirs, Tunny nets |
|
45 |
|
Fish trap area, tunny nets area |
|
46.1 |
|
Fish haven |
|
46.2 |
|
Fish haven with minimum depth |
|
47 |
|
Shellfish beds with no obstructions |
|
48.1 |
|
Marine farm (on largescale charts) |
|
48.2 |
|
Marine farm (on smallscale charts) |
|