EDN.
From what I have learned this map was a rough sketch of the major landmarks Holmes and Gideon Roberts believed Waltz was referencing during his deathbed directions.
Holmes is believed to have drawn the original but I have seen several variations of it over the years.
The map is not intended to get you to the spot where you put the pick in the ground, rather it is a guide using known landmarks to put you in the right country.
Here is the map the way Brownie Holmes explained it and the landmarks by name:
The top right is Four Peaks.
The bottom right is Miners Needle.
The middle left is Weavers Needle.
The wavy lines with the X is something Brownie would not divulge.
If you look at a map of the Superstitions these landmarks are in correct placement. Four Peaks is farthest North, Miners needle is farthest South, Weavers Needle is farthest West and between Four Peaks and Miners Needle.
It is the wavy line with the X that has been speculated on.
It appears North and East of Weavers Needle and North and West of Miners Needle. And South of Four Peaks.
The map is actually a good aid in the search if you could define the exact area of the wavy line with the X.
Matthew