What is the Google local 3 pack?

The Google 3-Pack is the method Google uses to display the top three results for local SERP results. It uses the user's location to make the search relevant to the location where the user submitted the query.

Hi Friends,
The Local 3-Pack refers to the SERP feature that's shaped like a map and displays places related to your query, as well as a 3-point list of businesses with their NAP data (name, address, phone, etc.). It replaced the 7 Pack — a list of 7 places for a relevant location.