A land is like the Philippines
You need to explain what you mean by perceptual regions. What is that?
Idaho's land regions are very beautiful. Catch a line, hike a trail what ever region you're in it's gorgeous.
10 land regions
There is three land regions in Costa Rica.
In the State of Washington there are 6 land regions
there are 5 land regions in Connecticut.
4 main land regions
I assume you mean Washington State, and not D.C. The main land regions are the Coastal Range, Puget Sound Lowlands, Cascade Range, Rocky Mountains, and the Columbia Plateau.
Vermont has six (6) main land regions.
Illinois has 3 land regions.
Nebraska has 49 land regions
2 main land regions