"Scoggins Creek". Geographic Names Information System. United States Geological Survey. November 28, 1980. Retrieved January 25, 2016.
trwc.org
Hawksworth, J. T.; Washington County Soil and Water Conservation District (February 2000). "Upper Tualatin-Scoggins Watershed Analysis"(PDF). Bureau of Land Management. pp. 1, 4–5. Retrieved July 16, 2015.