Differentiation of swamps, marshes, fens, bogs etc
by Mark HowardI tend to use the below designations:
Broadly speaking (I'm thinking from a British perspective):
Bogs/Fens: Irish peat bogs, Fens of Norfolk (England)
Moorland: Scottish Highlands, Exmoor, Dartmoor (South West England)
Marsh: River estuaries along the Essex coast (South East England)
Swamp, Mangrove: any tropical od sub-tropical swamp
Swamp, Temperate/Cold: no real world comparisons, but no reason why they could not exist in Mystara.
I've found this quite helpful as well:
