We suggest by comparison of images that the Cahokia Birdman Tablet -- the official logo of the Cahokia Mounds site -- might record that ancient land survey by showing the horizontal lines of land survey for North America (as calculated by the stars) and the vertical lines of land survey for Central America and South America, corresponding to the red lines shown here on the Google Earth Map (and of course, the underlying map is copyright of Google, which we use here as "fair use" under the copyright laws).
Click the graphic to obtain a larger image on your screen. We have left the heart out of the Cahokia Birdman and will add it to the image when our land survey map is finalized.
Ancient Land Survey Map of Native America
and the Cahokia Birdman Tablet Compared
A Provisionally Proposed Solution
Remember that there is cross-hatching on the back of the Cahokia Birdman Tablet which would explain the use of the diagonal lines for land survey. That possible use does not exclude the tablet decipherment we presented previously. Both are possible at once.
The above proposed ancient land survey utilizes a Google Earth Pro map clip as the underlying map of North, Meso- and South America. The red lines have been added by Andis Kaulins using the Google Earth "ruler" menu "line" option, connecting various megalithic, rock art, petroglyphic, etc. sites.
Those lines are not perfectly straight nor did we expect them to be. They are approximations for a land survey surely carried out by astronomical measurement and not by straight line measurement. Note that we have retained the X-Axis and the Y-Axis identified earlier in this series of postings.
Perhaps straight lines were ultimately used for calculation.
Note how one can draw a relatively straight line from the Feniak Lake megaliths to Cahokia (Monks Mound), from Cahokia to Mound Key in Florida, from Mound Key to the lost city of Ciudad Perdida, and from Ciudad Perdida to Jabuticabeira II and the sambaqui of that region. Note that the Feniak Lake megaliths and the Ciudad Perdida megalith both use the same "incision" type of boulder marking.
If we do a straight line directly from Feniak Lake to Jabuticabeira -- without cutting the 14000 kilometers (ca. 9000 miles) into sections, that line on Google Earth passes directly through the Grave Creek Mound of Moundsville, West Virginia, the highest conical mound in the United States.
Is that chance? We do not know, yet.
Was a survey of this kind actually carried out in ancient days?
We at least raise that possibility, but much more work still needs to be done before any really certain conclusions can be drawn. This a work in progress.
Now let us go to the next posting and reveal the location of the Mystery Eagle of the Great Google Earth Eagle Mystery Challenge.
THIS POSTING IS Posting Number 137 of The Great Mound, Petroglyph and Painted Rock Art Journey of Native America
A Hypothetical Ancient Land Survey Map of Native America and the Cahokia Birdman Tablet Compared: A Provisionally Proposed Solution