The Great Circle Mapper no longer accepts donations via PayPal due to poor fraud prevention by PayPal and consequent lost time and money.

A simple thank you (posted on Facebook or sent via e-mail) will be much appreciated.

If you'd still like a make a donation, please e-mail for details about donating via a check payable in U.S. dollars.


Copyright © 2004-2018 Karl L. Swartz. All rights reserved.
The Great Circle Mapper name and logo are trademarks of the Great Circle Mapper.
All other trademarks mentioned herein belong to their respective owners.
Please see credits for attibutions and further copyright information.

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