M. John Johnson Nature Area is one of the Pennsylvania 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
M. John Johnson Nature Area is in Chester County, Pennsylvania. Its approximate coordinates are 39.97182, -75.67478.
Check in at M. John Johnson Nature Area
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.