Here is something else. There is a big list of links as to how to search the Explore map here.
https://forum.inaturalist.org/t/how-to-use-inaturalists-search-urls-wiki/63/16
I am relatively new to iNat. I am trying to find out how to do things myself.
Here are the links from one post in that thread. The “Search for multiple places” might work.
(Wow. This is really good stuff!)
Search for multiple taxa
Search multiple taxa using a list
Search for single taxon by name, synonym, or common name
Search for observations that have no identifications
Search multiple places
Search by bounding box or circle
Search by location (positional) accuracy
Search by geoprivacy
Search for observations with or without media (photos, sounds)
Search by observation number (id)
Search by active identification(s)
Search for a user’s IDs
Search for observation field values
Search for Annotations
Search by Description, Tag, Name, Place
Project-related queries
Search for Observations from Seek app
Sort by Last Updated
Search by exclusions (not place, not taxon, not observer, etc.)