Detroit Harbor Nature Preserve is one of the Wisconsin parks in thicket's catalog. thicket is a field guide to the parks near you: it maps the ones you have never noticed, gives you a reason to actually go, and keeps a record of where you have been.
Where it is
Detroit Harbor Nature Preserve is in Door County, Wisconsin. Its approximate coordinates are 45.35319, -86.93799.
Check in at Detroit Harbor Nature Preserve
thicket verifies you are actually here by GPS when you check in, so a visit means you went. Checking in builds a streak, earns achievements, and fills in your map of the places you have been.