Aerial Photo Mosaics = Photo Indexes and Map-Line Plots: Pre 1990

'USGS and Non USGS Agencies Aerial Photo Reference Mosaics inventory contains indexes to aerial photographs. The inventory contains imagery from various government...美国地质调查局（United States Geological Survey, USGS）及非美国地质调查局机构的航空影像参考镶嵌图索引库收录了航空影像的索引条目。该索引库包含来自各类政府机构的影像数据……