The mapping example needs clarification, and for the diagram to match the text explanation:
Page 23. The number outside the circles are Depth, the letters outside are sequence, but what are the two numbers inside the circles?
Based on the text, I thought they were numbered events from the location table, but that doesn't completely track:
In "A", the number 13 does correspond to the event-- Impassable Bridge. But what does the number 11 specify? It isn't the location of Tower of Fate, because that isn't mentioned in the text.
For "B" the number 14 does track with the table location, Cliff Pass, so that's good. But what is the second smaller number 14?
For "C" the number 14 is Cliff Pass again, and the number 10 is Immolated Brush, whereas the descriptive text mentions Fae Village.
It doesn't track. This mapping technique needs a better explanation of how to do it.
And I think this image is probably just an error left over from a previous edit, and doesn't actually make any sense, and just needs to be fixed with correct information.