I continued to head north down Duplainville Rd., but it seemed like the further I walked the less new interesting sounds there were. Eventually I started to hear a familiar drone. I remember that while I was driving I had passed a small airport which seemed to accommodate to kinds of small airplanes that can only hold two or three people. When I heard this sound I looked up at the sky to find the source, but couldn't spot it. I like to imagine that it was one of the planes from the airport I passed.
Look up in the sky! It's a
plane.
Here is a map of the site:

The rocks under my feet made a great sound while I walked. Here's a photo of the train track: