In the novel, Gabriela needs to show Richard the area where she found the coin. I am attaching a picture of the map we were always using for trips (weekend, vacation, or business). I have another one that is much more detailed--to the point where specific houses, elevation, and hiking trails are shown--but I have to find it. The latter is what I used in the novel, but you can get a good idea of what Richard was looking at in the scene.
Cover of map. Well thumbed as you can see by the tape that tries to hold it together.