---
metadata:
  - name: generator
    content: Diplodoc Platform v5.48.2
alternate:
  - https://www.yandex.com/support/mapeditor/en/cat_morf.md
---
> **Documentation Index:** Fetch the complete configuration index at https://www.yandex.com/support/mapeditor/en/llms.txt

# 3.11. Terrain

Terrain is represented using placemarks and polygons on the map, for example:

- **Vertex** — the peak of the mountain (represented by a placemark):

    ![](_assets/morf_04.png)

- **Mountain pass** — a descent in the crest of a mountain range. Mountain passes (represented using placemarks) provide the easiest and most convenient routes between mountain valleys:

    ![](_assets/morf_03.png)

- ****Island — a piece of land that is surrounded by water on all sides (represented by a polygon):

    ![](_assets/morf_05.png)

    Sections of land that are surrounded by water due to seasonal changes (floods or tides) are **not considered** islands. These sections of land are not displayed on the map as reservoir shapes or types of terrain.

    {% note info %}

    If the island is named <q>island N</q>, it is drawn and categorized as an object of the **Island** relief type. For example:{#note_island}

    ![](_assets/morf_08.png)

    {% endnote %}

- **Archipelago** — a group of several Islands (polygonal map item):

    ![](_assets/morf_06.png)

- **Other terrain items**: all polygonal terrain items that do not correspond to any of the above types. For example, meteor craters:

    ![](_assets/morf_07.png)

For more information, see sections:

- [2.5.1. Places: drawing techniques](https://www.yandex.com/support/mapeditor/en/point.md#rules_point)
- [2.7.3.1. Drawing simple polygonal items](https://www.yandex.com/support/mapeditor/en/contur1.md#draw_contur)
- [2.8. Circular linear and polygonal items](https://www.yandex.com/support/mapeditor/en/round.md#round)
- [3.11.1. Rules for drawing terrain items](https://www.yandex.com/support/mapeditor/en/cat_morf_rul1.md)
- [3.11.2. The rules of attribution of terrain](https://www.yandex.com/support/mapeditor/en/cat_morf_rul2.md)

[Contact support](https://www.yandex.com/support/mapeditor/en/troubleshooting/fb_nmaps.md){.button}

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