The approximately 2,420 acres Shillapoo Wildlife Area, located within the floodplain of the Columbia River in Clark County, is managed as three separate units. Annual flooding and scouring, which formed the area's topography, has been substantially reduced due to hydropower, irrigation, and flood control projects upstream. The area is currently a mix of agricultural land and developed pasture intermixed with fragmented pieces of natural habitat of varying quality. Himalayan blackberry and Ree...
