There's a picture somewhere on the site I took awhile back of one that was resting in front of a local bar I go to occasionally. I saw a new family off of the tee box on a local course recently. They were, I'd guess, 18" or so long...roughly six to nine of them. Lizards? I don't pay attention to them until they're getting to the 10" or longer size...ya know, about the width of a average man's thumb. I know where two of them are right now that are at least 15" long, orange heads...really strange looking.
So, yes. Up and close quite often. The biggest was measure at 16' or so...lived on a course on the Navy base off of the 17th hole. It was just understood...stay away from the water. He never was, or has been, an issue.
I don't see the copperheads often although I'd guess I've ran across six or seven snakes this year. I don't live in the country. It's just a part of living in this part of the country.