CATLND

1. fen: a type of bog, especially a low-lying area, wholly or partly covered with water and dominated by grasslike plants, grasses, sedges and reeds. (The New Encyclopaedia Britannica, 15th Edition 1991)
2. marsh: an area of wet, often spongy ground that is subject to frequent flooding or tidal inundations, but not considered to be continually under water. It is characterized by the growth of non woody plants and by the lack of trees. (Nautical Chart Manual, US National Oceanic and Atmospheric Administration - NOAA, 1992).
3. moor/bog: wet spongy ground consisting of decaying vegetation, which retains stagnant water, too soft to bear the weight of any heavy body.(IHO Dictionary, S-32, 5th Edition, 504)
4. heathland: a tract of wasteland; peat bog, usually covered by a low scrubby growth, but may have scattered small open water holes. (Nautical Chart Manual, US National Oceanic and Atmospheric Administration - NOAA, 1992)
5. mountain range: a series of connected and aligned mountains or mountain ridges. (US National Oceanic and Atmospheric Administration - NOAA, 1992).
6. lowlands: low and relatively level land at a lower elevation than adjoining areas. (US National Oceanic and Atmospheric Administration - NOAA, 1992)
7. canyon lands: a relatively narrow, deep depression with steep sides, the bottom of which generally has a continuous slope. (IHO Dictionary, S-32, 5th Edition, 638)
8. paddy field: a piece of land set aside for crops which are periodically flooded (e.g. rice paddy).
9. agricultural land: areas used for cultivation of the soil, the breeding of livestock etc. and general farming.
10. savanna/grassland: a large area of relatively flat natural pasture.
11. parkland: a piece of ground kept for ornament and/or recreation or maintained in its natural state as a public property or area. (Websters New Collegiate Dictionary 1975)
12. swamp: an area of spongy land saturated with water. It may have a shallow covering of water, usually with a considerable amount of vegetation appearing above the surface. (IHO Dictionary, S-32, 5th Edition, 5240)
13. landslide: (or landslip). The sliding down of a mass of land on a mountain or cliff-side; land which has so fallen. (IHO Dictionary, S-32, 5th Edition, 2646)
14. lava flow: the substance that results from the cooling of molten rock. (adapted IHO Dictionary, S-32, 5th Edition, 2680)
15. saltpan: shallow pools of brackish water used for the natural evaporation of sea water to obtain salt. (IHO Dictionary, S-32, 5th Edition, 4494)
16. moraine: any accumulation of loose material deposited by a glacier. (Marine Chart Manual, US National Oceanic and Atmospheric Administration - NOAA, 1992)
17. crater: bowl-shaped cavity, at the summit or on the side of a volcano.(IHO Dictionary, S-32, 5th Edition, 1115) Also a hole formed by the impact of a meteor. (Nautical Chart Manual, US National Oceanic and Atmospheric Administration - NOAA, 1992).
18. cave: a natural subterranean chamber or series of chambers open to the earths surface. (Digital Geographic Information Standard - DIGEST)
19. rock column or pinnacle: any high tower or spire-shaped pillar of rock, alone or cresting a summit. (IHO Dictionary, S-32, 5th Edition, 3852)
20. cay: a small insular feature usually with scant vegetation; ususally of sand or coral. Often applied to smaller coral shoals. (UKHO- The Mariners Handbook)