The eastern and southern sides of the fort were fully protected by natural wetlands thus making a land assault from those directions impossible.

Fort Wayne is also making efforts in restoring natural wetlands to the region.

The lake is surrounded by marshland, one of the largest natural wetlands in northeast Thailand.

The role of rice paddies may be particularly important for the birds' conservation, since natural wetlands are increasingly threatened by human activity.

It includes some former salt evaporation ponds which the wildlife service is trying to turn back into natural wetland.

They kept the best of the natural wetland below the pond.

Near the peak of the mountain (1280 m above sea level), there is a natural wetland called Yongneup.

Because of these changes, few natural riverine wetlands remain.

The function of natural wetlands can be classified by their ecosystem benefits.

The sanctuary is an example of near natural South Asian wetland.