Under Rocks is a Location Type in Animal Crossing: New Horizons.
{ "id": "under-rocks", "type": "LocationType", "data": { "name": "Under Rocks", "Bug-LOCATION-LocationType": { "pill-bug__Bug-LOCATION__under-rocks": true, "centipede__Bug-LOCATION__under-rocks": true } }, "updatedAt": 1586208273073 }