Stacking rocks, also known as cairns, might seem like a harmless and fun way to leave your mark on a hike, but it can actually cause serious harm to the natural environment.
If you don't mind being a little daring, there's a hike you can do in Illinois that will take you across one of the most scenic structures in the state. It's a 90 foot stone bridge and there are no railings to hold onto.
Monarch butterfly populations in Illinois are in danger, here are some simple things you can do to make sure they continue to thrive in the years to come.