Lusus Naturae or the real thing?: Cropmarks in Shannaragh & Cornamucklagh, Co Tyrone
As many readers of this blog are aware, I run a small project where I collect radiocarbon &dendrochronology dates into a single catalogue . Back in 2006 it started out as a personal resource for my own research needs, but I found that other people also saw value in it and it has been publicly downloadable since 2010. I’m currently in the process of updating the catalogue for release (hopefully) later this year. One innovation I introduced a few years back was to provide a geolocation (as decimal Lat/Long) for every date. The work of getting the geolocation and then checking its accuracy is painstaking, hugely time consuming, and frequently boring. But sometimes, just sometimes, it reveals a gem. Cropmarks in Shannaragh I use a number of sources to get the geolocation that include data provided in the original paper or report, or (more frequently) the information supplied by the wonderful excavations.ie site. However I get it, I always end up checking it by putting it in...