Gehrke's Knoll 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
Gehrke's Knoll is in Dane County, Wisconsin. Its approximate coordinates are 43.19287, -89.27594.
Check in at Gehrke's Knoll
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.