----------------------------Original message---------------------------- Hello, All: Our library lacks a map specialist, whence this question. We're considering purchasing a CD-ROM of U.S. aerial photographs and would be grateful for recommendations of specific products. The more comprehensive the better, but since we're not really sure what options we have, we're flexible. Ditto for level of detail. Many thanks in advance, CAB VINTON Reference Librarian Frostburg State Univ. [log in to unmask]