Wetland Delineation Wetland pasture. Lopez Island, WA Salt marsh, Orcas Island, WA. Soil, hydrology, and vegetation sampling along subtle wetland-upland delineation break. Bog wetland community, with a Sphagnum moss ground cover, Lopez Island, WA. Large ponded wetland Seasonally flooded (in winter-early spring) aspen forested wetland in dry mid summer. (Click on any photo to enlarge) Peat soil Sphagnum mosses