Where is a good camping spot near Chicago, IL?

My friends and I are looking to camp somewhere near Chicago but we are willing to drive probably up to about 4 hours or so away. We would like to stay in a place that has cabins because we don't have a lot of camping equipment and that is reasonable price-wise as we are all college students. Also we'd... show more My friends and I are looking to camp somewhere near Chicago but we are willing to drive probably up to about 4 hours or so away. We would like to stay in a place that has cabins because we don't have a lot of camping equipment and that is reasonable price-wise as we are all college students.
Also we'd need a place that allowed around 10 people (in separate cabins if that's too many) that aren't family to stay together.
Any specific suggestions would be helpful! Thanks.
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