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Baker River Finney Creek-Skagit River Samish River South Fork Nooksack River Basin Upper North Fork Nooksack River Nooksack River-Frontal Bellingham Bay Middle Fork Nooksack River Whatcom Creek-Frontal Bellingham Bay Anja Helfrich; 2/9/15 Source: WWU & USGS; Projection: NAD 1983 UTM Zone 10N $ Flow Accumulation of the South Fork Nooksack River Basin 0 5 10 15 Km This map of the South Fork Nooksack River basin was created in ArcMap using the Flow Accumulation tool, which uses flow direction to calculate the total number of cells that drain through any one cell. The result reveals a river, which is defined by a certain threshold of flow accumulation. WASHINGTON
