In Washington, LIDAR data were used to produce elevation contour maps to identify potential interdunal wetland areas within the city of Westport, Washington. A series of 1 kilometer x 1-kilometer maps were produced using 1:12,000 aerial photography and elevation contours derived from the 1998 LIDAR data set. These maps help prioritize survey areas based on the likelihood that wetlands are found at specified elevations. The LIDAR contours are a more current and accurate source of elevation information than other elevation data sources. This improvement means better survey preparation and ensures that surveys are conducted in appropriate locations.

The elevation maps have been used by a professional wetland ecologist to prioritize field wetland identification efforts. Wetland boundaries have been mapped in the field through ground reconnaissance. The final map product includes delineated wetland boundaries and LIDAR elevation contours overlaid on 1995 aerial photograph mosaics.

View a sample map