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Patterson Creek at a glance

Patterson Creek, Snoqualmie Watershed

Located east of the Sammamish plateau and north of Fall City, Patterson Creek flows into the Snoqualmie River just north of the Raging River.

  • Drains almost 20 square miles
  • 12.1 miles long
  • 8% of the basin area is wetland
  • Dry Creek, Canyon Creek and 5 major unnamed tributaries

Water quality problems (Snoqualmie Water Quality Synthesis Report)

  • Frequently too warm
  • Not enough oxygen
  • Contaminated with bacteria

Patterson Creek Locator Map Fish

  • Chinook
  • Coho
  • Steelhead/rainbow trout
  • Coastal cutthroat trout
Problem weeds

More information
Patterson Creek Rural Recon Report
Snoqualmie watershed