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
Vermont has six (6) 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.
Illinois has 3 land regions.
Nebraska has 49 land regions
2 main land regions