The Innsmouth Case

While there are more locations you will visit, there are only sixteen locations that can be properly tracked via chapter select - the remaining few you will see marked on the map you can access via the main menu, along with a location discovery percentage.  You will visit the vast majority of the locations just by cleaning up endings or other trophies - the only one that you won't visit by working on the rest of the list is the Park - to do so, you need to hitchhike to Innsmouth, then head directly to the hotel.