From a Friend of McHenry County Blog:

If you have a photo of sign or are willing to take one, please email it to calskinner2@gmail.com.
This is from the Crystal Lake Park district nature center.
From a Friend of McHenry County Blog:
If you have a photo of sign or are willing to take one, please email it to calskinner2@gmail.com.
This is from the Crystal Lake Park district nature center.