What about this??!!

[Qussai]

this is a very nice mark ... can you help me to know what it refer's to,,

it's not a normal mark ,, it's absolutely refer to something,, etc cave , grave , treasure??!!

this one in a place..




and this tow in another place far away from the first one..

 

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[Adventure_Time]

While I'm sure these have some significance... it has nothing to do with gold prospecting and I'm curious why you keep posting in gold prospecting? As stated before, remnants of Indian activity.

 

[AU Seeker]

If these hole are in a streambed or desert wash that has no water now due to lack of rain, the holes you have found are most likely cause by turbulent water action during high water periods/flood stage in the stream, such holes are referred to as boil holes, the most common place boil holes form are at the bottom of waterfalls but they can form anywhere within a streambed where there is very turbulent water action over a long period of time.

 

[arizau]

this is a very nice mark ... can you help me to know what it refer's to,,

it's not a normal mark ,, it's absolutely refer to something,, etc cave , grave , treasure??!!

this one in a place..
View attachment 1218705



and this tow in another place far away from the first one..

View attachment 1218706View attachment 1218707

Check out these two links. These are what your pictures appear to be to me and at least one other respondent. Even if you are not in the one of the Americas similar objects or grind holes in boulders or bedrock are found worldwide.

https://en.wikipedia.org/wiki/Bedrock_mortar

Grinding stones worldwide.