Colour means silt, not depth

The creek turns brown when the fields upstream are bare. That colour arrives even when the staff has only moved a little, so colour is a note about silt, not a second gauge.
A notebook of one small creek: height, colour, and whether the stepping stones showed.

The creek turns brown when the fields upstream are bare. That colour arrives even when the staff has only moved a little, so colour is a note about silt, not a second gauge.