Eve,
I would think you need more information on a tunnel rather than just this what looks natural depression...
remember mother natures scribbles are far more numerous than rare treasure signs..dont be discouraged..
spend your time doing the research and learn that treasure signs are not single signs or marks but huge
Boulder piles made up of various stone carved elements..like animals, and profile faces ect..start with my
marks and signs 101 thread here on tnet and get a good grasp of the beginning knowledge of what it takes
to enjoy the very real treasure hunter world.
oro for the informed
rangler
Eve, it always important to show the entire rock / boulder I have found in my world that a symbol carved into a stone most of the time its JUST to mark that stone as being a part of something else such as a trail marker and such, it can sometimes also tell you what you may expect to find and the direction, height determine the distance in my world. measure from the ground to the top.