Ohio was a low-lying swampy plain near the coast during the Pennsylvanian.
It is made up of low-lying plains, interconnected hills and plateaus.
The western reaches of the county are high and mountainous, while the east is a low-lying plain.
Santa Ana is nested on flat, low-lying plains with little land elevation change.
When a river reaches a low-lying plain, often in its final course to the sea or a lake, it meanders widely.
There are low-lying agricultural plains in the west.
The town is situated on a low-lying plain, heavily water-logged.
Stairways on the slopes of the hill also link the monument to the low-lying plain.
Much of the town lies in the low-lying plains along the coast, with rolling hills and mountainous forest area at the interior.
Summers are cooler than the low-lying plains to the west and the town fills with tourists during the summer months.