The green snake was really tiny. It was resting on a dried ragweed stalk. When I started taking pictures of it, it wanted to get away but the geometry of the grass and ragweed confused it. So I had lots of time to photograph it.
I would have gotten a shot of it with the ruler, but I was in the lower meadow and George, who was sitting in the truck up by the house, called me because a car had stopped at the end of the driveway. So I gave up on the snake and rocketed back to the truck. By the time I got there the car had driven off.
The developer has removed all of the no trespassing signs I had put out where the spur to my land starts. The signs were quite effective in cutting back on the traffic by my drieveway. But they were not on my property, so he may have been worried about some kind of squatter's rights situation. I would have done the same if I had been him, but I would have returned the signs to their owner. (They were the good metal kind.)
I e-mailed a herpetologist from over on Flickr who goes by The Horned Jack Lizard
and asked him if he could ID the dead snake. If he doesn't get back to me or he doesn't know what it is I'll ask your guy. Thanks for the link.