Toppenish National Wildlife Refuge protects wetlands, riparian corridors, and native uplands on the Yakama Indian Reservation in eastern Washington, south of Toppenish in the heavily farmed Yakima Valley. Shaped by Toppenish and Snake Creeks and sustained in summer by irrigation, it preserves a productive mosaic of marshes and other wetland habitats in a region where agriculture has altered much of the surrounding landscape. These food-rich wetlands attract thousands of wintering waterfowl and support breeding birds and other wetland-dependent wildlife in summer. Toppenish Creek is also one of the last remaining streams where Columbia River steelhead still reproduce in good numbers.