- Located in northeast corner of Washington, this preserve includes a large expanse of wetland habitats and adjacent conifer forest along the Little Pend Oreille River. The mosaic of wetland habitats, including areas dominated by a variety of shrubs interspersed with extensive open marshes, provides excellent habitat for waterfowl, osprey, moose and many other wildlife species. Two state-listed sensitive plant species, poor sedge and bulb-bearing water hemlock, are also found in the open marsh areas on this 290 acre preserve.