1969 to 1999, 30 years is a large time span eventhough we can assume that only few movies were filmed around Alps. Going through the list of films itself would take a while and the missing enclyclopedia of a thorough registration of the history of TFI adds only to the joy. Well, we now basically are much inclined to narrow it down through various inputs of films and songs those which we could recollect. From my ends, I can come up with a strategy to narrow the serach (don't try google, it just ditched me)

Year : 1969 - 1999

Location : Alps

Country with keyword Mountain : West of France, South Italy, Swiss, Liechtenstein, Germany, East Austria, Slovenia east also and South of Monaco

General Knowledge : Alps runs for 1200 kms across 8 European countries with its crown mountain Mont Blanc on the French side.

Narrowing : we could eye Mont Blanc, Swiss and Italy parts.

And Google did not completely ditch me - my sweet little google - I came across a site which may interest you. Someone is trying to construct a similar database just like you :

http://www.wherewasitshot.com/browse_by_movies_tamil/

Went through some samples, its quite impressive. Not complete though, I think people are slowly submiting infos.