Vintage National Geographic Photos (1888-1999)
vintagenatgeographic.tumblr.com
vintagenatgeographic.tumblr.com
https://images.google.com/hosted/life
https://books.google.com/books/about/LIFE.html?id=N0EEAAAAMB...
As an aside, it appears that they never bothered to update their logo in the first link.
[1] https://cdn.ebaumsworld.com/mediaFiles/picture/2192630/84327...
- Computerworld (1969–2007) https://books.google.ca/books?id=J4CKdPZSuR0C
- Infoworld (1978–2007) https://books.google.ca/books?id=tDcEAAAAMBAJ
- New Scientist (1952–1989) https://books.google.ca/books?id=yINSqbNUNM0C
- Popular Mechanics (1905–2005) https://books.google.ca/books?id=BtEDAAAAMBAJ
- Popular Science (1872–2009) https://books.google.ca/books?id=qR8DAAAAMBAJ
Or others according to personal iterests https://books.google.com/books/magazines/language/en?sa=N&st...
https://books.google.com/books?id=DE0EAAAAMBAJ&pg=PA46&lpg=P...
Then look at this 2009 photo looking directly up the same valley rather than from the side. https://www.indiamike.com/india-images/pictures/meola-glacie...
The change is happening at a pace that we don't see, without the overview of historical photos.
A very bad omen for India's water supply I think.
However, it is entirely possible there are more sources than a single Tumblr for old National Geographic magazines.