Villas, barrows, DMVs & roads: viewing Lincolnshire's arch from the air using Google Maps: http://www.caitlingreen.org/2014/10/lincolnshire-aerial-archaeology.html …pic.twitter.com/6TtiAjxt6b
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
It's amazing how much you can still see, isn't it?! :) Though some of them definitely come off better in aerial photos!
That's what I would think. A farmer could walk around those fields for years and not really know what was there.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.