Cottonmouths are the most aggressive venomous snake around here. They're pretty bad tempered imo
Hello; I am going to figure any I see are aggressive and keep my distance just in case. I do not want to find out the hard way if a bite is dry. My area is not supposed to have them but I thought I saw one many decades ago. I was young ( 7 or 8) and there was a snake in a creek next to my house. It was in some sort of branch over the water. A neighbor shot it and the snake opened its mouth to strike. The inside of the mouth was white.Mostly show, they do mock charges and show their mouths so they don't have to bite you, if you stand still during a mock charge then they'll usually keep on going.
In a study involving many dozens of wild water moccasins only five could be incited to bite by harassing them (this even included sticking leather gloves in their mouth, almost all still wouldn't bite)of those five , three were dry bites.
I see mostly copperheads and some rattlesnakes.