Looking at the information that you've showed us, here's something you might try. Remember that I told you that the oval of rocks could indicate the shape of an eye? With that in mind, the pulley wheel could represent the iris and the white quartz the pupil. The rock with the carvings is on the north side of the oval. Stand there and look, south, at the rest of the oval, you should be facing the ridge. Imagine a line that goes from the north end of the oval to the south end. It seems like the oval is on flat ground, so that could tell you to look up, Extend that imaginary line south toward the ridge and then up to the top of the ridge and see if there is anything along that line. You will probably have to go to the top of the ridge and extend the line even further, but keep looking for a rock or tree with carvings or maybe an unusually shaped rock. For distance you will probably have to experiment, but you might start out by measuring the carved lines on all of the numbers and letters, add them up and try going that distance in feet. It should get you close to another marker, but you will have to look close, the marker could be as small as your hand or as big as a big wheelbarrow, or bigger. A possible shape could look like a capital D or a heart. If you have any luck with this tip, please let me know, because it will be similar to the site I study and I might be able to help you date the site.