All places in the Places API are categorized into one out of 9 feature classes (represented by letters) and further subcategorized into one out of 680 feature codes.
Feature Codes
| H: Stream, lake, ... | ||
| Code | Short Description | Full Description |
|---|---|---|
| CHN | Channel | The deepest part of a stream, bay, lagoon, or strait, through which the main current flows |
| CHNL | Lake channel(s) | That part of a lake having water deep enough for navigation between islands, shoals, etc. |
| CHNM | Marine channel | That part of a body of water deep enough for navigation through an area otherwise not suitable |
| CHNN | Navigation channel | A buoyed channel of sufficient depth for the safe navigation of vessels |
| CNFL | Confluence | A place where two or more streams or intermittent streams flow together |
| CNL | Canal | An artificial watercourse |
| CNLA | Aqueduct | A conduit used to carry water |
| CNLB | Canal bend | A conspicuously curved or bent section of a canal |
| CNLD | Drainage canal | An artificial waterway carrying water away from a wetland or from drainage ditches |
| CNLI | Irrigation canal | A canal which serves as a main conduit for irrigation water |