There are several on the Southern Illinois University Edwardsville campus. We have the largest campus based on square acreage in the country and use very little of it to be honest. There is one right in the middle of the quad which is very fun to get at with muggles around! Some are in the bike/walking trails nearby and some are in the botanical garden! Point is, if you get permission from the University, knock yourself out. Although I know if some caches are found, students can be known to abuse them. Once cache on campus was closed because the students had urinated in the cache itself...sigh... *SMH* Probably best to hid the small ones so they are less likely to get abused in that manner!! LOL!