Thank you for your generous gift of history education! These apps are are fabulous. I use the park resources at each site, but it’s great to be able to carry the GPS information system. It allows me to see exactly how specific land features were used in the battles. It is a historical terrain ride without a horse. I only wish you had included more about the men in the surrender painting. In particular Lieutenant Colonel Ely Parker, of the Seneca Nation who drafted the generous terms of surrender.
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SF Presidio