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 |
|---|---|---|
| FLLS | Waterfall(s) | A perpendicular or very steep descent of the water of a stream |
| FLLSX | Section of waterfall(s) | |
| FLTM | Mud flat(s) | A relatively level area of mud either between high and low tide lines, or subject to flooding |
| FLTT | Tidal flat(s) | A large flat area of mud or sand attached to the shore and alternately covered and uncovered by the tide |
| GLCR | Glacier(s) | A mass of ice, usually at high latitudes or high elevations, with sufficient thickness to flow away from the source area in lobes, tongues, or masses |
| GULF | Gulf | A large recess in the coastline, larger than a bay |
| GYSR | Geyser | A type of hot spring with intermittent eruptions of jets of hot water and steam |
| HBR | Harbor(s) | A haven or space of deep water so sheltered by the adjacent land as to afford a safe anchorage for ships |
| HBRX | Section of harbor | |
| INLT | Inlet | A narrow waterway extending into the land, or connecting a bay or lagoon with a larger body of water |