This is a cool web site:
http://dinosaurpictures.org/ancient-earth#66
You can input your address (tip: doesn't have to be your exact address), and it'll plot your point on a world map. You can then change the date of your map to see who plate tectonics would have worked around your location for the past 750 million years.
Living in Denver, I've been on a coastline numerous times. I think my property has been near the beach at least six different times.