National Park Service

Office of International Affairs - Program Topics


NPS Sister Parks Program

In a 1916 letter from Interior Secretary Franklin K. Lane to first NPS Director Stephan Mather, the Service was directed to maintain contacts with national park authorities in other nations and to stay informed on their developments in order to identify areas for improvements in the U.S. National Park System.

Since that time, the National Park Service International Program has continued to promote and facilitate collaboration in perserving and understanding natural and cultural heritage throughout the world.

Sharing expertise with visiting park and conservation professionals, in addition to the National Park Service’s overseas technical missions, demonstrates the full-range commitment of the Park Service in its contributions to global environmental conservation.

We encourage you to click on the various sections in the panels below to learn more about the different program areas the NPS Office of International Affairs is involved in.