1950 Map of Alameda Flat

About this map

The Columbia River carves a deep path through this mid-century landscape, separating Okanogan Co from Douglas County and defining the southern boundary of the Colville Indian Reservation. High above the river, the plateau is marked by a scattering of rural community centers like Alameda and Osborne Corner, alongside the Rex Grange Hall. The transition from river to high range is steep, rising through Bissell Flat and Alameda Flat toward peaks such as Whitmore Mtn.