| NOS | NIMA | |
IHO | Foreign NIMA Charts |
|---|---|---|---|---|
 |
Radar mast |
 |
 |
|
 |
Radar tower |
 |
|
|
 |
Radar scanner |
 |
|
|
 |
 |
Radar dome |
 |
|
 |
 |
Dish aerial |
 |
|
 |
Tanks |
 |
 |
|
 |
Silo, Elevator |
 |
 |
|
 |
Fortified structure (on large-scale charts) |
 |
 |
|
 |
Castle, Fort, Blockhouse |
 |
 |
|
 |
Battery, Small fort (on smaller-scale charts) |
 |
|
|
 |
Quarry (on large-scale charts) |
 |
|
|
 |
Quarry (on smaller-scale charts) |
 |
 |
|
 |
Mine |
 |
|
|