Nice Pictures! I can answer your question. That black snake is a black rat snake. Was that midland water snake (subspecies of the northern water snake) found at LaRue Road. I have never found a midland water there before. In fact I don't think I know anyone who has seen one there either. I'm sure they have a good population there, but it surprises me that you saw one. They generally inhabit lakes, creeks and rivers. One doesn't usually see a midland or northern water snake in cypress swamp. I have seen them up north in oxbow lakes. I did see a midland water snake at Mingo swamp in a ditch, but that is far as my northern water snake experience goes. Nice find. Ryan

I was deployed to Iraq in 2004 threw 2005. Saddam Hussain collected exotic animals. I mean exotic animals that killed people and he used them to torture citizens and enemies. I was first stationed at his sons hunting palace. Mainly saw huge fish there but have heard stories of different animals they found and had to clear out. Never saw a python there but did see two cobras. One was alive and was a tan color which was 4 to five feet long and the other was a long black snake that was at least 10ft long. It looked dead and was in a shallow stream. I did not get that close to it. The biggest camel spider I saw was in Camp Arifjohn Kuwait. It was the size of my boot. So it was like ten to 12 inches.

I google for "__animal name__" of "__location__" and it works quite well http://www.virginiaherpetologicalsociety.com/reptiles/snakes/snakes_of_virginia.htm  https://en.wikipedia.org/wiki/Northern_water_snake http://www.chesapeakebay.net/fieldguide/critter/northern_water_snake  Northern Water Snake baby ... they are strongly marked compared to the adults.

Not sure where you are located but just generalizing, the head is the wrong shape to be one of the venomous North American snakes. The exception to the triangular shaped head would be the coral snake and it certainly isn’t one of those. Just leave it be and let it go about its business of eating vermin.