Gregg Hill Nature Preserve is one of the New Hampshire 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
Gregg Hill Nature Preserve is in Hillsborough County, New Hampshire. Its approximate coordinates are 43.07678, -71.84976.
Check in at Gregg Hill 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.