investigate/consider filtering certain BLM sites

> az.blm.gov isn’t live – blm.gov/Arizona is.
> I can’t speak to other sites that may have been updated but the states are incorrect for sure:
> ak (not listed) az, ca, co, es (not listed) id, mt, nm, nv (not listed), or (not listed) ut, wy

Start by checking how BLM sites and their state assignments are represented and filtered; the issue names az.blm.gov, blm.gov/Arizona, and several state abbreviations. No file or test is named, so first locate the site data and filtering entry point. Done means confirming the current URLs and correcting or excluding the incorrect entries with a test or verification for the listed states.

Written by the indexing model from the issue text.