Big Rock Forest Preserve : Big Rock Creek

Big Rock, Illinois, United States

Observed by
Ryan Kriz

• Observed on: Thu, 20 Mar 2025 09:08:00 -0500
• Testers Ryan Kriz
• Associated with:
  National Great Rivers : Winter Chloride Watch
• Lat: 41.7374717
• Lng: -88.5102796

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