The new 2019 edition of the Ashtabula County Plat Book is now available for purchase for $25 + tax at Ashtabula County - OSU Extension Office located at 39 Wall Street in Jefferson. Premium wall maps are also available. For more information contact the office at (440) 576-9008. Traditional landownership maps by township and range, a landowner index for easy cross referencing, and other county information are all available in the new plat book. Visit mappingsolutionsGIS.com for digital versions of Ashtabula County landowner maps. Mapping Solutions is the publisher.