USDA Geospatial DOQQ Data Server September 16, 2006 by gisuser Users of this USDA server wil find DRGs and DOQQs served up in NAD83 and NAD27http://ortho.ftw.nrcs.usda.gov/ Related Posts:The Role of Big Data in Creating Data Science-Driven…Week-end GeoDev Reading - Python, JavaScript ,…NOAA wants to hear from users about OpenData