I finally made it to Swan Lake. It took a while for me to figure out the trail map that I found on-line of Rockefeller Preserve does not show any trails except those of the preserve. Unfortunately or maybe fortunately, there are plenty of unmarked roads and trails going through private property. It wasn't until I found a comment from someone on-line that said the trails were well marked. That is when I realized that I wasn't even on the Preserve half of the time, hence the cow pic from the other day from a nearby dairy farm. I didn't see any swans on the lake but I did see more cows this time. I will have to post one of the close ups. I was surprised to see the dairy cows have names.—NY