If You See Purple Paint in the Illinois Woods, Leave Immediately

Summer 2025 is here, and while it's always fun... and free to go out on hikes, you should also keep an eye out for the color purple. That color along with others can mean a range of things.

Purple Paint Law In Illinois 

Illinois is one of 18 states as of 2024 that follow this law. The shortest answer is that these markings can, and do represent a "no trespassing" sign. The Purple Paint Law gives landowners the option of marking trees or posts to prevent trespassing. One of the biggest benefits of the purple paint being used for no trespassing is that, unlike signs that can be removed or destroyed, the purple paint is pretty permanent. The Illinois State law is as follows,

SPRINGFIELD, IL  A new law signed by Governor Pat Quinn allows Illinois landowners or lessees the option of using purple paint markings on trees or posts on their property as a no trespassing notice. The Purple Paint Law is designed as an alternative which Illinois landowners can use to protect their property from trespassing.

This law is again relatively new, it went in effective July 1, 2019.

If a property owner living in an unincorporated area places purple paint around their property on trees or fence posts, entering the property is forbidden and constitutes trespassing,

Crossing This Paint Is Trespassing, And The Same Laws Apply

While signs are still used by plenty of landowners in Iowa, it is important to remember that if you walk past purple paint then you are trespassing, it's important to stay aware of your surroundings as you're having fun with friends and loved ones this spring.

Yes you can get in trouble for passing these markers. Stay safe out there!