Trevor Pearson from English Heritage leading a GPS surveying day with SWAAG members.
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Trevor Pearson , Chair, CBA Yorkshire, and Head of Technical Survey and Graphics (Archaeology) at English Heritage, demonstrates the Trimble GPS/GNSS Surveying equipment to Peter. Trevor came to look at the SWAAG GPS surveying methodology, and has kindly offered to bring his Trimble equipment to one of our regular surveying days this autumn, so we i>all can get some hands-on experience in using this professional equipment. Photo: S Eastmead July 2010.