Hi,

> I would like to access the Wiki dumps for Wikipedia and Wikitravel.
> Essentially, I am looking to get dumps for some US cities from both these
> sources for product research. However, it is not very clear at
> http://dumps.wikimedia.org/backup-index.html, which are the relevant files
> to pick up.

Which Wikipedia do you want? What data do you want?
If you want the dumps of the English Wikipedia, find “enwiki” in the
index page, which will link to the most recent dump files (currently
http://dumps.wikimedia.org/enwiki/20120211/). If you want current text
of articles, you want the pages-articles dump (currently
http://dumps.wikimedia.org/enwiki/20120211/enwiki-20120211-pages-articles.xml.bz2,
7.6 GB).

Wikitravel is not run by Wikimedia, so you won't find their dump at
the same page. You can find information about their dump at
http://wikitravel.org/en/Wikitravel:Database_dump.