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1. Click Tools from Analysis tab.
2. In the Hydrology toolset, double-click the Flow Accumulation tool.
3. For ‘Input flow direction raster’, drag in the FDR layer from the Table of Contents.
4. For ‘Output accumulation raster’, rename the raster from “FlowAcc_FDR1” to “FAC”.
5. Ensure your ‘Flow Accumulation’ window appears as shown below and click Run.
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6. Turn off the Flowlines_StatePlane layer to better see the FAC layer.
7. Right-click the FAC layer and click the Symbology.
8. For ‘Symbology’, use drop-down menu to select Classify.
9. In the ‘Method’ drop-down menu to select Equal Interval
10. Use the ‘Classes’ drop-down menu to select 8 classes.
11. Click the Classify… button.
12. For ‘Class Breaks’, double-click the numbers in the Upper Value column  and typethe following list: 100, 300, 1000, 3000, 10000, 30000, 100000. (Leave the final max value, 351408 as is.)
13. Click OK.
14. Use the ‘Color Ramp’ drop-down menu to select the multipart color scheme.
    
    
    
    

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