----------------------------Original message---------------------------- Dear MAPS-L and MAPHIST members: For a research project in groundwater remediation, I'm looking for aerial photographs of Tinker Air Force Base near Oklahoma City. These can be recent or historical flights that will be used for geological interpretation of fracture tracings; desirable scale is 1:24.000 or larger. Inquiries are being made at the Department of Agriculture/ASCS, EROS Data Center, and the Air Force (one geologist I spoke to quipped that I should check with the Russian government!). Any suggestions or leads to other collections? Please reply to me off-list at [log in to unmask], rather than the address given below. Thanks for your time and ideas! Charles W. Dean Robinson Map Library/History of Cartography Project University of Wisconsin-Madison [log in to unmask]