Project Study Area
Wetland and riparian areas will be mapped in 193 USGS orthoquads. The geographic setting for this project includes the coastal watersheds that fall within the project areas of the Water Quality Control Boards Regions 3, 4, 8, and 9 (see Figure below). Together, the geographic scope of these three Regional Boards encompasses over 11,000 sq. miles of land. In general this region is characterized by a mild semi-arid climate with an average rainfall of 15 inches per year. The region is highly urbanized, with land uses ranging from residential, commercial and industrial, recreational, agriculture, to open space.

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Our project will involve mapping only those areas for which there is no recent NWI data. Figure 2 below outlines the 193 USGS orthoquads we will be mapping. Click here if you would like to download an Excel spreadsheet listing the quads we will map for the project.