Punching in 42° 16′ 33.72″ N, 71° 54′ 40.6″ W to Google Maps will get you there a lot easier than what's posted. What's posted will bring you through highly monitored reservoir land. The actual airport has a little parking lot on the side of the road that's east to pull into and park behind some bushes. Also watch out for snakes, they sneak up on you there. There are wild blueberry and raspberry bushes there so you can probably see some cool wildlife around those once they're ripe. The buildings are basically all caved it but still awesome yo look at.