The BGS Large Scale Geological Map Collection.

Geological map 'Standards', manuscript and published maps of Great Britain produced by the Survey on County Series (1:10560) and National Grid (1:10560 & 1:10000) Ordnance Survey base maps. Maps produced since the 1860's, current holdings over 41,000 maps, all now available internally as image files.本数据集收录"标准"类地质图件，涵盖以英国军械测量局（Ordnance Survey）郡系列（1:10560比例尺）与国家网格系列（1:10560及1:10000比例尺）底图为基础制作的大不列颠地区手稿地质图与正式出版地质图。该批地图自19世纪60年代起开始编制，当前馆藏总量逾41000幅，现已全部以图像文件形式实现内部共享使用。