Layers - Page 4

Show an unimproved road. The surface is usually rough (for example: rutted) and minimally prepared (for example: packed earth or thinly covered with gravel gravel).
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Shows a location of entrance and/or exit.

Shows a defined area at an aerodrome or heliport intended for aircraft parking. Used, for example, to accommodate loading or unloading passengers, mail or cargo, fuelling, parking and/or maintenance
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Show a path worn by the passage of people or animals.

Show a hill or mountain situated over an opening or openings in the Earth's crust through which lava, cinders, steam, and/or gases, are or have been expelled.

Show a solid man-made barrier of generally heavy material used as an enclosure, boundary, or for protection.

Show a structure primarily used as a berthing place for vessels.

Show a mass of rock or coral which either reaches close to the sea surface or is exposed at low tide, posing a hazard to navigation.

Show an excavation drilled or dug into the ground (for example: the sea bed) for the extraction of liquids and/or gases.

Shows an excavation made in the terrain for the purpose of extracting and/or exploiting natural resources.