21. It runs for 95 km from the Black Forest through the Upper Rhine River Plains . 22. He has baptized his potential state Padania, the geographical name for the Po River plain . 23. Columbia Plateau and the Snake River Plain ecoregions. 24. Love County is within the Red River Plains physiographic region, with a rolling to hilly topography. 25. It is one of a succession of supervolcanoes and calderas that formed the Snake River Plain . 26. It drains a ranching and farming valley in the mountains southeast of the Snake River Plain . 27. The railroad swung north to Samotschin before following the bluff overlooking the river plain farming villages. 28. He grew up in the " Snake River Plain ", where mountains surrounded on all four sides. 29. Volcanic activity on the Snake River Plain . 30. West of the town center is the Quaboag River plains , known locally as " the Flats ".