The placement and terrain offer several challenges -- a good departure from the easier to find stashes -- but by no means difficult (afterall, the coordinates provided were taken within ~16 feet accuracy). The most difficult challenge may be navigating with a full umbrella of leaves during the Summer months -- but a solution might be taking along a compass (or taking GPS readings in the clearings) and carefully calculating your movements. If you are about to park somewhere illegally or tresspass private property it means you've selected an incorrect path -- reevaluate your approach.
Please keep this forest preserve beautiful and clean by picking up (and properly discarding) any trash that you may observe on your way to/from the stash. Additionally, please observe the following park regulations: (1) park opens one hour after sunrise and closes one hour after sunset, (2) alcoholic beverages are prohibited, (3) all pets must be leashed and (4) please discard all trash in the garbage or recycling containers.
This is my first of many planned intriguing and challenging GPS caches -- please check for my other sites.