Combine places when searching?

When in the Explore or Identify pages, is it possible to combine place terms in a search? I don’t see anything obvious, maybe it is possible with a URL string?

Example 1. Search for observations in California AND Nevada
Example 2. Search for observations in the United States, except NOT those in California

Yes, but you need to know the place_id numbers.

Combine,3 does Nebraska and Massachusetts

Exclude does everything but the US.

They can be combined together so ?place_id=1&without_place_id=14 would do all US but California.

If you need the place is number, search for it, open the page and append .json to the end of the url and it is the first thing listed.

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