Have you tried the US Air Force?  What about USGS (since we owned it for 100 years) or the Panamanian Geological department (can't think of the proper name).  Or the Canal Authority.

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On Sep 12, 2019, at 3:01 PM, "Martin Chandler, Mr" <[log in to unmask]> wrote:
Hi all,

With apologies for cross-posting:

I had a request today for a student looking to research temporal change of forest cover around the Panama Canal. I've pointed them toward some Landsat imagery, but was wondering if anyone knew of anything better - possibly historical air photos? If you have a Panama Canal collection tucked away somewhere, I'd like to know!


Martin Chandler
Data Services Librarian
McGill University Library
3459 rue McTavish | Montreal, Quebec  H3A 0C9