Lost vintage National Geographic magazine from 1975 with yellowed cover and African savannah photo near Hurricane Ridge, Olympic Peninsula.

I lost a vintage National Geographic magazine from 1975 while hiking on the Olympic Peninsula. I remember having it with me when I stopped at Hurricane Ridge for a break. It has a yellowed cover with a stunning photo of the African savannah. It is quite special to me, as it was a gift from my late grandfather, and I would love to get it back.