I thought I would let everyone know that penn pilots back up. Its set up a little different but still an awsome research tool. When you zome in to the area you want to see from a certain date, click on the date and the red dots come up. The other thing, so you dont have to start over after each view. Follow the directions in the help tab. It will instruct you to open in new window and save pic from there. I have been using these pics with google overlays. It takes some time to line up, but they show you a lot of good areas to hunt.
GO STEELERS!!!!!!!!!
GO STEELERS!!!!!!!!!
